First, I'd like to thank you for actually engaging in a discussion with me. Some people around here seem completely incapable of that, so it's refreshing!
I genuinely wasn't aware of the org with the Marxist-millionaire-real-estate-mogul founders until conservatives started using it to attempt to discredit the movement. It's always been a grassroots decentralized movement to my knowledge. The tie between that particular org and the movement seems to be a conservative talking point more than anything.
You just defined systemic racism.
You're not wrong about human nature. We are tribal by nature and it's unavoidable to have in-groups and out-groups. It's the same factor that's responsible for certain forum users here that automatically group me in with Liberals, a group that we both dislike, when I'm a Leftist. Tribalism has its perks, but in the modern world I feel like it's a negative aspect of human nature that we should strive to overcome.
Systemic racism doesn't just mean laws or other rules that specifically target minorities. It CAN include them, but just because the Jim Crow laws are gone that specifically apply to one race, doesn't mean that our legal system isn't giving one race preferential treatment. Hell, in some cases conservatives have outright admitted it. See this quote from Nixon's domestic policy advisor:
That's a quote about the War on Drugs, which last time I checked, was still in full effect! And still disproportionately affects black folks! So, systemic racism.
There are definitely people who will outright hate you for being white. I'm not going to deny that, because I've seen plenty of people online that just have "I don't like white people" as part of their Twitter bio or whatever. It's awful and those people are absolutely doing harm to the civil rights movement with their racism.
However, aside from that tiny minority of racists, no one is asking you to be ashamed of what you were born as. That's a common misconception(and propaganda talking point) about CRT. CRT is about acknowledging the very things that you've admitted, basically that minorities have gotten shitty treatment not just in the United States, but all over the globe. The notion that CRT is teaching kids that white people are inherently bad is 100% false. CRT is just another word for, you guessed it, the civil rights movement! They just want minorities to be treated equally.
I'd never heard that about the messiah part, but it's not surprising. Yes, people absolutely do awful things for what they perceive to be good reasons. I'd venture even further to say that VERY FEW wrongdoers see themselves as evil people. I really doubt very many people wake up in the morning and think "Heck yea, time to do some BAD STUFF!" It's always in the name of justice(or revenge for injustice) or ending the war or for the greater good or whathaveyou.
It sounds like you may be one of those taxation-is-theft types, which is fine. My brother is one and we get along just fine but we don't talk politics much :)
I'm sorry to inform you that Marxism is not by nature authoritarian. What you're thinking of is
the appropriately named authoritarian socialism. The fundamental principals behind Marxism are about empowering the lower class; pure Marxism is democratic. The notion that Marxism is authoritarian typically comes from the well-known Marxist boogeymen, Lenin and Stalin, who were both authoritarian socialists.
If you're simply referring to the taxation-is-theft part and using other peoples' money to fund things, well...I'm afraid that it's a bit too late to stop that. We already do it for roads, public schools, bombing brown people, etc. Most people who identify as Marxist just want us to use that money differently. There's a lot of really simple, great changes that we could make to our society that are Marxist in nature and would benefit literally everyone except arms dealers and the very upper crust of the wealthy.
