Yes it is the race. The culture was brought to you by the race, now that you put chocolate so to speak in the Angel food cake mix, you no longer have the same food. We screwed up bringing in slaves, we are screwing up bringing in the worst people in the world into what was a first class society.
The “Vandals” are ransacking Rome as I write, or better said, bringing in the poor and disenfranchised, the children who do not know who their parents are, CANNOT but tear apart a society.
LBJ on forward, the politicians purposely destroyed the country. Once they started paying women to have children by men they screw them move on, the die was cast. Further, paying them increasing amounts, then allowing SS payments to the kids and immigrants, it was just a matter of time.
It commonly is... but I know of cultures of black people - Maasi for example - who have a much nicer culture. I have also met black people from cultures outside the US that are very different.