Yes, I think there is probably a super strong correlation out there between poverty and crime, and it so happens that, specific to the United States, urban black communities have dealt with some significant issues that have set them back. There was likely some statistically significant impact on the communities from bias and discrimination, but was it enough by itself? No. But I believe the government subsidization through social welfare started degrading the family unit of the black community, and the crack epidemic was a significant (and likely, causally, downstream) follow on that served to increase crime and poverty while simultaneously removing even more young black men and black fathers. Here's my full position, though: look at David Goggins. He overcame a tremendous amount of adversity, some of it unjust and racist, to get to where he was. Likewise, opportunity to many black communities is being removed by the nature of what they have become. So when I say it's because of government programs BY their race and not necessarily FROM their race... that's what I mean. Does society, including the members of the black community, need to hold each individual accountable? Absolutely. It HAS to happen. It's the egg before the chicken, and it needs to happen before the opportunity window closes further (although, admittedly, with the way things are going... that may be unavoidable for now).
But because of the segregation, self-imposed, that cultural and family force has to come from inside of the black community. And no genetic or cultural force can truly overwhelm the POTENTIAL of the individuals. It is reliant on them to actually realize it, though.
Sure, and your problem is far more intense than ours. You imported Islam, not just a different culture. At least the majority of Central and South American countries have strong Catholic backgrounds with machismo and providing for your family being strong factors. Far, far easier to integrate that within a generation or two with American Liberty.
So, here's my opinion. I am not arguing the demographic change. I'm not saying your theory (and it's conspiracy, but wait... don't get pissed off yet...) isn't shared by several others. My experience is that there aren't really conspiracies on this scale -- just confluences of interest from the powerful that so happen to play out like conspiracies because of human nature. That is to say... it's way scarier in some ways than a conspiracy. A conspiracy can fall apart easily, and can only be truly kept by one. That's why I don't buy the whole globalist cabal schtick. I think they're, basically, achieving the same ends through hubris and greed, though. That's far more terrifying to ME, anyway.
And I said before -- I don't think you're racist. Really. I'm also not denying that culturally homogeneous societies can be more efficient and well-bonded, or even that said societies tend towards more homogeneous genetic distribution, either. See my replies to Yngvi below for more on my viewpoint.
I am not arguing that genetics don't have impact, or that a particular ethnicity and region aren't prone to sharing more of the same genetic heritage. I'm also not arguing against that slight deviations of the mean produce large disparities in the exceptionally small populations of the tails of an ethnic group. I'm simply stating that the genetics of skin color, the same as hair color, cannot be sufficient markers to assume things about people, and that ESPECIALLY in America there is huge diversity genetically across the entire population. Also, that the free society of the West, and ESPECIALLY America, can have extreme impacts on genetic diversity due to the bias of self selection (read simply: whatever impacts slavery and forced breeding had have probably been largely erased or were mitigated).
I'm also saying that you have to have a pragmatic position to what YOU will do with another individual. After all, all of us NOT In the tails of a demographic still need to live together and function as a larger society.
We're also a long, long way off from anything resembling what is happening in South Africa happening here in the United States. What happens here might end up being worse, though, but it won't be the same.
It's like people don't appreciate it when I point out that the distribution of COVID-19 related SARS-COV-2 almost exactly mirrors population density, and likely DOES exactly match when you also factor in total surface area for metropolitan areas within a state. The reality of it spreading is that it happened rapidly enough, long enough, and with a low enough mortality that it CANNOT POSSIBLY constitute a large threat to society.
WHOOOOSH.
I've been going with a garlic clove to ward off vampires. Not that yours isn't an excellent analogue, but I think the plague actually posed a significant risk to humanity.