No, it isn’t similar at all, nor did you make that comparison initially. The Hollywood blacklist is one aspect of what is now known as McCarthyism. And you only brought it up to make a bogus defense of it.
No one here is arguing otherwise. I made a comment supporting @tobinl’s original point about the First Amendment, one which wasn’t your main concern as much as sharing your opinion that…
Which no-one here was doing.* We were pointing out that Stalinists were not the majority of those targeted by the Hollywood blacklist (nor by the broader McCarthyist witch hunt).
You claimed it was “a bit weird how even today the Hollywood Blacklist is made out to be a horrible tragedy.” We provided evidence to the contrary and you tried to weasel your way out of acknowledging it and failed.
[* and which the lefty edgelords in the quarantined subreddit weren’t really doing, either.]