Because those idiots can't get their emotions under control. In this business, you need to have the fucking mentality of a Terminator. Cold asf and the only thing that matters is the progress of your Country.
I agree with @Asena_great you and the other dude are naive. And "I think they will not cause problems in the future" is this your gameplan?
They will leave and you can join them, yallah.
That's why a proper state has to force them to a degree. Just because Türkiye is a better Country than theirs, doesn't mean that we should accept demographic destruction...
This is one example of what I mean when I say that the only thing that matters in this region is DEATH and DESTRUCTION. If you can give that in a good amount to your enemy, they will panic and all of a sudden come to talk...