Switzerland is deceptively effective at assimilation. Migrants tend to learn the local language and customs.
I live in an extremely diverse area with many immigrants on my street and it’s fine.
I met a man from Afghanistan sometime last year, however, once we got past the introductions and realized we shared things in common- he opened up to me and began trying to make me realize the value of Sharia law in America, and how much better it would be here if it became the cultural norm.
I am far more afraid of certain of my native-born countrymen than I am of people who come here.
I've upvoted you because it's a relevant point.
The reason I'm not afraid of Afghan refugees moving in isn't because I think their love of Sharia law will be drowned out by my other neighbors' love of Christian Sharia, but because I don't think it's particularly likely they're going to love government-imposed Sharia law in the first place.
Would you say it even doesn't correlate in the US with what church they go to? Whether they go to a Fundamentalist Baptist church or are Quakers? I find that hard to imagine to be true in a meaningful way. And if it can be, then it can also hold for villages, cities and countries.
>I'm sure Switzerland has plenty of shitty locals, even if it might manifest in a different way.
The way it manifests is incredibly important and cannot be waved away. That's an entire half of what makes up the issue.
I find it's best to break these things down and discuss them individually (or discuss how multiple rules combine to produce a particular effect, as the case may be): then it's easier to tease out which arguments are honest ("I genuinely think X is better, for Y reasons") and dishonest ("I think X is better for Y reasons, but I believe you'll find Z more persuasive, so I'll say Z"). There's also a phenomenon where people attribute beneficial (or detrimental) properties to one, visible part of a system, when they're really due to another: consider the arguments about capitalism versus communism, which are rarely actually about economic policy, and are more often about other (on the face of it, unrelated) policies of the state: your interlocutor might realise this after detailed discussion, if that is what is going on, when otherwise they might have gone their whole life without noticing the misattribution (as many people do).
Cultural exchange can be mutually-beneficial, even if you both go away thinking "wow, that other guy was an idiot".