Poor white people are not nearly as violent as poor black people. Check the stats yourself. Blacks are about 13-14% of the population but they commit 50% of the murders alone (usually they murder other blacks).
As much as your racist mindset would like that to support your conclusion. It simply doesn't. Being 13-14% of the population does not imply being an even distribution within the demographics of the population. If all 75% of that 13-14% is poor (not unreasonable), but only 10% of the white people are poor (also not unreasonable), then that would give you pretty much the exact same number of poor people of either race. The result - an unsurprising 50/50 split in crime rates too.
Ever wonder why things never change?
No, because it's clear.
1) They do change. We've gone from blacks, women and gays (amongst many others) being ostracised, to many of them being productive members of society, and people like you being frowned upon. That's great!
2) The change is slow, exactly because of people like you, trying very very hard to make sure that these people get held back as much as you can. Thankfully idiots like you are getting rarer and rarer.
At one time it was not politically correct to advocate heliocentrism either. But it was still a fact.
That's an interesting comparison. You seem to be suggesting that we generally go from poor understanding of the situation, to more enlightened understanding of the situation. That our knowledge of the situation improves. One way that this has improved is that we've realised that the earth is not the centre of the universe, and then even realised that neither is the sun. Another way is that in the past, we thought that blacks, women and gays were somehow inferior, and not just normal human beings who happened to have a different pigmentation, sexual organ, or preference. Thankfully we've advanced past that point now.
Black men can start by seriously trying to parent their children instead of leaving them to be raised by single mothers in broken homes in bad neighbourhoods.
This is almost as laughable as "The poor just need to stop being poor, then they could afford health care."