I don't think anyone said SDS was an exception, or the only group, that was white dominated. But instead of denying any fault and pretending that people are saying things that they aren't, it would be helpful as a first step to stop making excuses.

Frankly, there are a lot of people out there who are turned off by white-dominated groups, and there are a lot of people who see nothing radical about well organized groups of white people getting what they want. Isn't that what always happens? Large organized groups of white people getting their way?

The problem is that almost all of the american left is economic reductionist, in part because almost all of the organizations have roots in racist labor unions or racist state socialist parties (SDS is no exception, look up League for Industrial Democracy, you don't get the benefits of the name without the baggate) and even on this thread about racism, you've lumped "working class folks and folks of color" together, as if fighting racism was just a form of fighting classism.

The idea that we all share a movement and are peers is bogus, and it was manufactured by people looking to marshal people behind parties designed to seize power. If you're a POC fighting racism and specifically the marginalization of POC in politics, then there's hardly anything to support or be inspired by in a well organized white-dominated group getting what they want.

Accept that first, instead of making excuses, and maybe then you'll start to see ways of moving forward.