Why would I support Hamas? Why would I not support Hamas?
You are irrational.
Those who deny reality (in this case progressive support of tyrannical/oppressive/terrorist ideologies and tyrannies) generally do so because they also support those ideologies and methods.
BTW..here's your progressive support of Hitler:
"California's eugenicists could not claim ignorance that Germany's sterilization program was motivated primarily by racial politics. For example, in 1935, the Los Angeles Times published a long defense of Germany's sterilization policies, in which the author noted that the Nazis "had to resort to the teachings of eugenic science" because Germany had been "deprived of her colonies, blessed with many hundreds of defective racial hybrids as a lasting memory of the colored army of occupation, and dismembered all around." Not only did California eugenicists know about Nazi efforts to use sterilization as a method of "race hygiene" -- targeted primarily at Jews -- but they also approved efforts to stop "race-mixing" and increase the birth rate of the "Northern European type of family." The chilling words of Progressive reformer John Randolph Haynes anticipated the Nazi regime's murder of 100,000 mentally ill patients: "There are thousands of hopelessly insane in California, the condition of those minds is such that death would be a merciful release. How long will it be before society will see the criminality of using its efforts to keep alive these idiots, hopelessly insane, and murderous degenerates. … Of course the passing of these people should be painless and without warning. They should go to sleep at night without any intimation of what was coming and never awake."
FrontPage Magazine - Eugenics and the Left
You can find a lot of people saying nice things about Hitler in the early 30s. Churchill had a lot of positive things to say about Hitler at that time. Was Churchill just another "Hitler-worshiping liberal" too?