The Republican Party being unacceptable to you doesn't automatically mean the Democratic Party is for you.
I mean, it seems pretty acceptable to me. I'm in line with the President of the United States on the majority of issues. I'm in line with the Senate Majority Leader on the majority of issues. The Speaker of the House may be a little to my left, but she's proved herself a reasonable figure. Virtually all the Dem Governors seem to be doing an acceptable job. I would vote to re-elect about eighty percent of House and Senate Democrats if I had the chance.
My problem with the party is only a small group of radicals who snuck in via stealth primaries and attempted to transform the party into a clone of the racist scum vultures who lost two elections but managed to massively increase their country's antisemitism stats. Those people sound like they should be minimized for a healthy party.
Again - these "entryist radicals" have been committed to the Democratic Party longer than you have. Why is it okay for you to pull the party towards your ideology but not okay for them?
I remember when he called Adam Griffin, a (former) chair of a Georgia county's Democratic Chair an entryist.