The difference between McCarthy and Sterling is the government acted during the McCarthy era to ruin lives. There is no government involvement in the Sterling case. The marketplace is punishing Sterling, not congressional indictments.Back during the McCarthy era liberals were outraged (rightly so)by the Hollywood blacklists of suspected communists. The argument of "they're free to express an opinion and the bosses are free to not hire them" didn't go very far. If you can be physically harassed and deprived of property then you don't have freedom of speech, period.
Today liberals are simply brain dead. It's all about what they think is OK, what other people think is criminal.
You didnt read my post. During the McCarthy era Hollywood maintained a black list. Anyone, actor, writer, whatever, on that list could not get work. The government had nothing to do with it.
The marketplace is not punishing Sterling. The NBA is. ANd they are a monopoly.