You keep switching back and forth
In your prior post you made the distinction that we were talking about "people who teach poisonous or proveably false ideas". Not about people's personal beliefs or political parties. My post answered yours on those grounds.
Now you seem to be talking about anybody who is left of center who is permitted to teach a class, or in your words: "So if you broaden your definition to include socialists and the current favorite pseudonym, "progressives," it gets pretty easy to locate such teachers. If you then include the milder and more moderate leftists and liberals, you wind up with about 94 percent of the faculty."
Pick one or the other and I'll chime in.