As I said it is up to you to provide evidence for your many claims.
Sweet, that should all be adequately done. Let me know if you need any clarifications.
If we are really going to understand this situation, The reasons for how we could get here are just as important.
How could we get to a situation where a party would pursue policies that are opposed to its core principals and not be able to detect or correct it?
Group think and tribal politics have become a central feature in American decision making. People have exhibited near religious like adherence to their sides propaganda. Following the 'good' ideas of their side while opposing the 'evil' ideas of the other side. Often with far more important than the policies themselves.
We have gotten to the point where we are not listening to people on the other side, and many of us are not even really listening to people on their own side that question their dogma.
People who otherwise would oppose systemic racism suddenly defend it if their parties actions are in question (where they base their sense of right/wrong on).
This comes down to the basic principle of what I call a 'blame based understanding system.' Something that we all do to some degree.
It is prohibitive for us to conceptualize large complex issues or problems, and we look for ways to simplify them in our minds. Mainly because we simply do not have the time or ability to address every subject that we deal with. There are a number of ways that we perform these simplifications including symbolism and generalizations. One of the tools that we use is the blame based understanding system.
Especially when we are faced with a situation where there is conflicting information, it is difficult to succinctly summarize the issue, and we need a tool that will allow us to do that. Finding a key source of blame allows us to do that by focusing blame on a main set of people or factor, and reduces the need to deeply understand added details.
When we place so much importance in the righteousness on our political side, any questioning of those policies also questions our sense of justice, and is emotionally very hard to do. Especially if we have placed a lot of importance in the blame of the opposing party.
There are also many people who will base their actions on how it affects their ego. People may feel bad about a situation, and they look primarily for ways to stop feeling bad about it rather than pursue long term or complex solutions. Sometimes that means fixing a problem, sometimes it means sweeping it under the rug. That is why solutions to difficult problems will often include ways to get it out of sight and out of mind so that people no longer have to feel as bad about them.
If we graduate people without giving them the necessary skills for most employment, we will shift their suffering out of sight from the schools. This is the same reason why many pushed for defund schemes that killed many more people of color than it saved, but pushed the dead out of sight and out of mind without the fear that they would have to be emotionally troubled by a far lower number of people that were killed and talked about publicly. People would publicly say that "Black Lives Matter," but at the same time would kill hundreds of people of color to sooth their ego by demonizing police
If we had more open dialogue, more people doing the smell test in their parties policies rather than just blind support, and more people that focused on long term solutions rather than quick emotional fixes, than this problem would be seriously mitigated.