First Amendment rights in "a country"? Is this like asking if they have a fourth of July in France?
It was a hounding campaign that blacklisted people whose association with communist thought was as little as a club in college. It wasn't for America's glory, it was for Joe's. And now you all are taking it for yours.
The concept of rights is vacant absent a belief in God. The theology which was commonly understood in America in the founding era which makes the Declaration of Independence and its certain rights coherent is valid everywhere or nowhere. If it is disregarded elsewhere - or, Heaven forefend, here - that does not mean that they are invalid anywhere.The principle of American polity is that they do wrong who disregard those rights - whoso and wheresoever they be. Which is not to say that America, as a prudential matter, should necessarily try to enforce foreigners rights in foreign countries. Only that in principle America regards foreigners as having those rights.
The topic was what Senator McCarthy personally did wrong. In historical retrospect - as many suspected at the time - Senator McCarthy only attacked people who were guilty as charged.