If users choose Google today, it's either because of inertia or because they find that Google's organic search results are worth sifting through a page of ads.
This is unlike other aspects like privacy where users may not fully understand the consequences of their actions.
I find this a red herring. Ads have never been a problem, the ecosystem around them is the problem.
> What the US government should do is to introduce privacy laws that disallows user profiling for the purpose of serving ads. The GDPR in the EU is a step in the right direction.
This is overly specific; user profiling is also used in recommendations and to develop aggressive and optimized marketing strategies. One of the problem of "Big Tech surveillance" in not what they know about you, but that they know so much about everyone that they can model your behavior/response with little information. (which for example is what happened with Cambridge Analytica)
> The US government should also demand for those ads to be more clearly marked as being ads via color clues.
This feel a lot like micromanaging.
Unfortunately it's only a temporary solution.
For one maintaining your own web crawler and index is expensive, DDG is outsourcing that to Bing. They use other sources too, but if Bing shuts down their API tomorrow, DDG will probably die.
DDG's revenue also comes from ads. They might claim that they want to do right by users, but when serving ads the incentive is to optimize those ads to make more money.
Also DDG's work isn't AFAIK open source. But it probably wouldn't help anyway, it's not like you could install a search engine on your own VPS.
I don't think breaking Google is the answer either.
What the US government should do is to introduce privacy laws that disallows user profiling for the purpose of serving ads. The GDPR in the EU is a step in the right direction. The US government should also demand for those ads to be more clearly marked as being ads via color clues.