As far as I've seen in his films (well not only his!), "Death Wish" etc., only brown or poor people are "criminals." Please. The rich enslave, murder, and destroy before breakfast. Also, sick people need help not torture. (Give Drump a nice room in a mental hospital.)
First off, your can metaphorically call "sick" someone like Trump or the slavers, but seriously believing that they are medically sick is as naive, as dangerously naive, as considering a gay person "sick": considering "sickness" a psyche you can not accept only shows your own mental shortcomings and, what is even more hurtful to yourself, keeps you unaware of the true nature and extent of that supposed "sickness"; because, just like people who believed that being gay was some sort of bug you could exorcise from someone's mind, believing Trump just needs medical treatment is ignoring, not just his own psyche, but the fundamental fact that diversity also includes the "bad" like the "good", and that there are people "evil" enough to destroy anything in their way as long as they preserve their egotist pride intact.
As for Bronson's films, and the ilk of whih they are just one franchise, it's far worse than you take them to be, becausethey do not mind "brown" or poor people as long as they are naturally tame or have been assimilated, and they kick the rich and the white's asses as long as they do not fit their naive and righteous sense of order and propriety, and actually it is the rich that they even more distrusted than the foreigners, yellow or brown (funnily enough, Bronson, Norris or Wayne look more "Native" than "Anglo"). You would be more right in pointing out that those brown and poor are criminal only to serve the sinful whims of the rich and, again, that film gives a perfect example.
Finally, the sort of scene that you found so unsettling, and that could only be found in that sort of populist drivel thirty years ago, became mainstream less than two decades later, and it did so through the more leftist side of the American society, who had started to become fully aware of the naivety of relying strictly on rules to serve justice and "be fair". That is how you got all those characters in film and TV shows of kool outsider weirdos who did the good by bypassing the stale old rules or, even deeper into mainstream consciousness, occasionally by law-abiding heros who were pushed to their limits in some particular cases. Bronson merely represented people who had already woken up from the America the Beautiful dream back in the dark and leaden 1970s, and acted it all with the theatrical panache endeared by those who love paradinf with guns and all that.
](/images/smilies/bang.gif "Brick wall ](*,)")
Oh well 
