He's definitely not on the shitlib's Christmas card list.
There have been entire Twitter flame wars fought over whether or not Dore is "on the left", or a grifter, or etc. Even the so-called "left" media (TYT, TheHill, etc.) can't stand him even though he's worked with some of those people (TYT) in the past.
Probably because he isn't afraid to go on Tucker's show and doesn't simply regurgitate the establishment narrative or meat shield for useless politicians.
Even I don't agree with him on everything but he's right far more often than he's wrong.