this discussion imo is far too complex for a HN comment thread, but your depiction of "barbarism" is deeply rooted in western narratives omitting details such as many people from those places also find those atrocities terrible, and they are perpetuated because of a few powerful bigoted people and lots of propaganda. when atrocities are justified with propaganda, i think it's crude to think the people or the societies are barbaric as much as the leaders (usu. religious ones) are. western societies moved past honor killings, feudalism, slavery, concentration camps and other barbaric practices not-so-long ago, and to a great extent because of the resources they extracted from other countries during that time afforded them to bandwidth to focus on equitable societies. following that, wanting to isolate people of those other societies from also becoming part of these more equitable societies by precluding them as barbaric and therefore shouldn't be allowed here, imo, is what is barbaric.
the contemporary west has also repeatedly shown itself capable of direct barbarism too, like brutally levelling a school of innocent children in Pakistan or drone-striking innocents as collateral damage with no restraint. or what, is unjustified murder & cruelty only barbaric when done on your own soil, and fair game done in someone else's country with citizen tax dollars?
also somewhat unrelated but yes, serbian is white insofar as they genetically present features mostly associated with western white society (light-colored eyes, hair color other than black, caucasian bone structure) so without considering family circumstances/political background, that's white, at least on observation. of course with your mixed heritage i understand this may not be true of you specifically.