I'm a fan of Asimov, but he was no conservative.
Some people are hard to place in politics, because they combine libertarian tendencies with "progressive" tendencies.
I am unaware of any mainstream writer from the golden age who fell for communism. but I suspect many were democrats. This era -- 1920-1960 -- was when mainstream writers were kissing Stalin and Castro's boots and glorifying revolution.
H.G. Wells was supposedly a socialist, but he didn't put it in his sci-fi.
Laz was being sarcastic.
Actually, Wells's socialism is pretty evident in The Time Machine, which can be read as a cautionary tale about the gap between the bourgeoise and proletariat, the rich and the poor blah blah blah.
Fred Pohl was a communist when he was a teenager, but he quit when Stalin signed a non-aggression pact with Hitler. I think, having gone to lots of sci-fi cons in the Chicago area, that fandom skews either to the far left or right.
Gene Wolf is very conservative and I always enjoy talking to him whenever I see him at a con.