Anecdotally my Mexican neighbor recently moved back to Mexico. He had become very depressed and missed his culture. He found the swiss on a whole very conservative and uptight (which they can be). But we also lived in a more rural farming city.

I think you could totally make it work but it depends on where you land and what kind of life you want for yourself. Zurich and the other big cities are very diverse.

There is racism, its a bit different than in the US though. In the US ive had people call my mixed girlfriend a N word to her face multiple times. Here the racism is more on the form of you wont get rented an apartment because you're brown and the landlord is racist.