Qwiss Footballers have millions of pounds and for the most part live in bubbles with everything about their private lives relatively strictly controlled, if they are from the streets, well they progress from the streets to country manors and—with notable exceptions—seem to do so with short memories.
The failure to acquire various kinds of conventional bourgeois cultivations for which many footballers are mocked isn't so much as a badge of authenticity as a marker of some altogether altered existence, one in which you're a handsome and fit 25 year old multi-millionaire who still can't choose his own meals or go out drinking on an average Saturday evening.
I actually think Xhaka's nationalist antics are pretty endearing out of all the stuff he does, but yeah, my friends who share his ethnicity spend their time doing things like running peace-making art exhibits in Mitrowica etc, not trying to piss off Serbian pan-Slavic imperialists with Putin corflutes in their windows.