I'd probably act in the same way as Yagami Light. The world is full of scum, while it's a big sacrifice, I'd still take a shot at making it a better place for the people that deserve it.
EDIT: In my defense of Punishing, I must say most of the gypsies I've met in real life, at least here in my town, and many others are beggars, criminals, and such. I have met a few gypsies that actually met jobs, but the most I see are those who scavenge stuff from trash cans, put it on their carriage (pulled by a horse) and take it away somewhere. They also steal stuff and then sell it, a gypsy once got busted for stealing my friend's bike and trying to sell it at a local market.
I'm not saying that they're all like that. But, at least here, most of them are. And it's not just misfortune either. Anyone can get a job as a garbageman or similar labor work. Instead of that, they choose to dig in trash. Well, so be it. I won't judge an entire people just because of those in my country, I'm just saying that here, most of them are low-life.
It's probably the same way in Romania too. Except that there's more of them there. Now I don't agree they should all die; but Punishing is right as far as the fact that most gypsies in our countries are thieves, beggars, and criminals.