You’re mixing two things. In Superman Returns, Perry White said, “Truth, justice and all that stuff.” It made it into the movie. The only thing objectionable about the three Captain America movies was the directors saying after the latest one that they want gays, trannies, whatever in their future movies. And I think they just answered the question in a way that noncommittally appeased the questioner.
The “truth, justice, all that stuff” Perry White line in Superman Returns was completely consistant with White and the development of the character going back decades. It’s exactly the sort of cynical comment hard bitten street reporter now editor White would say.
In analyzing and critiquing things like this we need to take care not to go overboard on what are non-issues. Taking them out of the larger context because superficially and only at face value they appear to support our point. That Perry White line is a great example of just such a non-issue.