I was trying to separate the two cases. Not really sure how that qualifies as a mistake, but never mind.
//Just as an example, anyone today who is lukewarm or less on the subject of homosexuality is labelled 'homophobic' ...//
Again, though, that's not really an example of "Newspeak", which specifically has to be regarded as a systematic regulation of what is said by some specific authority, rather than -- in this case -- societal self-regulation. As attitudes towards certain aspects of society change, those who hold on to a more traditional viewpoint can be seen as being "left behind". But they aren't being censored, or persecuted for their views. Or, in as much as they are, it is no more acute a persecution than people still undergo for being "liberal" -- or gay, transgender, etc etc.
What I think is going on is that previously entrenched and unchallenged attitudes are now being challenged, suddenly, resulting in a certain amount of hypocrisy. Consider the Cecil Rhodes statue issue. One of the main arguments against its being taken down was that the statue being there represents a challenge to modern attitudes, and that such a challenge to one's views is a part of life. Fair enough, as far as it goes. Except that, when the traditional views are challenged in essentially the same way that people were wanting, suddenly it's their turn to cry foul. By claiming it's PC gone mad, or Big Brother, or Newspeak, or some such. Well, no, it is not. It is simply that you can't expect any longer to hold 'controversial' viewpoints without being called out for them.
What I'm trying to say is that it works both ways. People can go too far in trying to suppress a challenge to modern life. Traditionalists also seem keen to suppress challenges to their views, though, in a subtly different way.