You can claim it's rare, but it happened on 100% of my trips to Sweden. Therefore, I will never travel back to Sweden. It's just not worth it and I have no idea what could happen (stabbing? murder?). Nothing in Sweden is worth the absolute fear this country provokes.
How do you know? It doesn't look like OP specified how much they've traveled.
> I only got robbed twice...in Johannesburg, South Africa and Stockholm, Sweden...it happened on 100% of my trips to Sweden
That sucks, I'm sorry that happened. It sounds like it happened once, and so that "100%" is just one trip by one person? Unfortunately, that result is within the realm of randomness, though I'd understand if, to you, it felt bigger than that.
That said, I don't think it compares to arbitrary (or worse, politically- and personally-motivated) government detainment (or otherwise harming) of innocent people.
It's not rare, it will happen to you. Do not come.
As much as the scenarios can be rare, there is an undeniable sense of everything hanging by a thin thread when traveling around the USA, which I've only experienced in Latin American countries in all my trips.
Giving that I'm originally from Brazil even though with Swedish citizenship, I won't be traveling to the USA anytime in the near future. I have no idea what could happen, might be a completely rare occurrence to be profiled at the border, jailed for no cause, etc., but there's nothing in the USA worth enough to make me even more paranoid at crossing its borders. It's more like the straw that finally broke the camel's back, it's been brewing for a while, I've been stopped by CBP for holding both a B-1/B-2 visa on my Brazilian passport as well as an ESTA on my Swedish one, I do not want the potential issues that another interrogation by CBP at present times could create, like being sent to some jail for 20 days instead of just being refused entry and put on a plane to get back to the EU.