There's almost always been some hegemon. When the world wasn't as connected, they were regional, then continental, and now world-wide. The US is the current one for a large portion of the world, but in the past you had Britain, France, Spain, HRE, Mongols, Rome..etc. Asia has seen its fair share of regional hegemonies, so has Africa and the pre-contact Americas. So it seems like that's a power void that needs to be filled by _some_ entity, and if left empty it doesn't remain so for long.
Personally, what bothers me more than the US being in charge, given that I'm American, is the way the US regime runs things in the homeland. The values, ideology and culture which is cultivated at home is not consistent with the type of foreign conquest/hegemony/will to power externally. One can see this with the way military recruiting for example is suffering. I would prefer, like empires of the past, that a warrior culture and values promoting power and vitality were encouraged at home. That they are not, and woke culture is ascendant makes some like me not very motivated to "fight" for the nation's interest overseas or support a more aggressive heavy handed "hegemony". There are big contradictions, in other words. (I'm a military vet who fought in Iraq and Afghanistan, so these issues are meaningful to me... I see the country I fought for not representing my interests, so I have less will to fight for it or support it's fight. Make sense?).
If one is not American, and say, European. They should want Europe to be powerful, not the US. I can't tell you how many Europeans I get in conversation with online that for some reason don't even support their own continent or countries to be powerful on the world state. To assert their own interests. To have a military that can enforce their will, or do whatever is necessary to oppose US meddling in their affairs. As if it is some unquestionable fact that the US should dictate to them or that it is better the US have power over them than Europe rivaling US for global power.
> To assert their own interests.
Who's to say their current interests aren't "Let's let the US play world police and take care of the military stuff." Perhaps it's just that I've played too many 4x games, but it seems to me that sometimes the best strategy is to be buddy buddy with the big bad dude on the block, rather than try to be the big bad dude himself.
And these advantages allowed them to get away with this fake soft power narrative. In other words their advantages in materials and geography enabled what I see as a disadvantage in ideological frame that will eventually lead to weakness in my opinion. Most Americans, and American society at large are shielded from the harsh realities of power politics, empire, and conflict that their nation cultivates far away from them to weaken rest of world. European civilization benefited from rotating powers and repeated conflict among themselves which was a selection pressure to further power, technological development, civilizational advancement etc. "Hard times make strong men".
>who's to say
Yes for a while. But now I see that power directed at them to suppress their own interests which I view were a closer alignment with Russia, purchase of their cheap resources to fuel European industrial power, and a rise of Euro as additional reserve currency which they could print for cheap Russian commodities. Now they've sanctioned Russian reserves at the behest of US interests (crushing the idea of Euro as something energy exporters will want to stockpile in reserve, eliminating the Euro as a "petro"-currency), and they've self-sanctioned out of cheap Russian energy, Nord Stream etc and potential alliance and close relations with their neighbor (relative peace in western hemisphere benefits US, chaos on "world island"/Eurasia benefits US, hurts Europe). Relatively speaking European industry will get crushed compared to US who has cheaper input costs and can print money for energy (for now).
Europe arguably would have been better building long ago their independence from US, and some sort of alliance with Russia since they are neighbors, and built their own military strength so they could oppose these developments and assert their power on the European continent, instead of fade into irrelevance if the energy issues lead to industrial decline, companies/citizens leaving to US etc.
I'd argue that this is only coming to the front (some 80 years the development of nukes) due to historical nuance. The US and USSR kept each other, more or less, in check. When the USSR collapsed the US not only had immense soft power, but also lacked any any remotely viable competitor. But that's all changed rapidly. Russia largely rebuilt, China is becoming the dominant world power, India is coming into their own, the Mideast is no longer content just being a lapdog, and even much of Europe is increasingly being coerced into agreement rather than genuinely seeing eye to eye with the US.
So the US wants to stay the dominant world power, but has no viable claims to such, let alone means to enforce that. We're headed to a multipolar world, or nuclear war and then a multipolar world. Once choice is clearly optimal.
If that starts to wane, much of the other aspects of liberal culture might not be able to fill the gap in "hard times" like atomisation, declining social cohesion, increasing polarization, declining military recruiting numbers and disillusion within much of veteran community of past few years. Much of the legitimacy of our institutions and leaders is predicated upon certain narratives. If they fail..
They have military bases all over Europe, and rest of world, they control the global financial system especially amongst their "allies" and have dominant world reserve currency. They sanction and invade countries and leaders that go against their interests.
NATO: "To keep the Americans in, the Russians out, and the Germans down". Always they are suppressing and sowing conflict amongst rival powers especially on "world island" / Eurasia. And this makes perfect sense, but to not call it a conquest is silly.
>self-determination
Just to take a recent example, they absolutely did not allow Germany and Russia to make an alliance over energy trade through Nord Stream pipelines, sanctioning all involved players and companies for many years, and making dozens of promises to destroy the project.
They also banned Huawei and demanded Western allies comply, not permit self-determination to do business of their own regard.
You'll say something to the effect of "well when the rules are broken..". Yes being able to write your own rules and have your vassals comply is called conquest.