My point was that, while the phrase itself is fine and even correct, it has a context behind it that makes it kinda problematic to say It's like saying "Germany is the greatest country on earth," it's not an inherently harmful statement but there's a lot of historical context that makes it something people might be bothered by you saying
It isn’t that the phrase originated from those groups, it’s a phrase that was used and adopted by a particularly dissident group and now has connotations much like the Chaplin stache. At that point it’s up to the person who phrased it to clue in on what it intended and not leave others to their imagination, and also for others to beg the question of intention before taking action.