Neither do I. I just want the Democratic Party to act like it opposes white supremacy. If it can't do that, there isn't really any reason for me to vote for it.
I note that you're the one who asserted that you feel just as strongly about white supremacy as I do, and despite that you then went on to say that the Democratic Party should work together with the GOP despite admitting that it contains many white supremacists and acts like a white supremacist organization. And apparently if I don't agree with you about this I'm a Tea Partier! You don't seem to have a very big tent here.
So why isn't it, then? Maybe some argument would be useful in convincing people.
"Either way" is doing a lot of normalization work here. If the GOP is a white supremacist organization, it is clearly irrelevant whether the American people have given them control of the government or not. A white supremacist party has no legitimate claim to governance. We settled that at Gettysburg.
More personally, a party which has no interest in defending my rights to life, liberty and the pursuit of happiness clearly has no authority to rule over me. That's also a long-settled question in America as I understand it!
So it's very much not clear to me that trying to "work with" it is the right idea. In fact, I hope very strongly that most Democrats don't agree with you, for my sake, for America's sake, and for the sake of the Democratic Party.