The history with the Turkish gastarbeiters is a complicated one. Please don't twist the knife in the wound.
And similarly, I don't think it's reasonable to suggest OP is the wrong one for being treated worse for wearing clothes from their culture.
If you look out of place, you will get more looks, and that's it, that's where the line should end.
Soft bigotry of low expectation is not open hostility so much as a giving up on a people—-X people are inherently incapable, so just let them be, don’t expect anything from them. As a result of painless low expectation, no one strives, no one offers them opportunities, the people don’t move forward, and the low expectation fuels further low expectation based on poor performance.
Mor maybe you were referring to expectation of other EU countries to be unwelcoming?