Ukrainians don’t burn their passports and refuse to aid in their identification, if that’s what you’re alluding to because that’s the kind of stuff gets you shitcanned in the “You can stay in a camp with full board and meagre pocket money and leave the country at any time but forget starting a life here” way, as the only reason to do that is if you don’t actually qualify for refugee status or asylum. But, again, nothing to do with race.