Don't demonize Ronaldo. His troubles at United were mostly due to promises from the club and Ten Hag himself that he was counted on and needed by the team. And immediately from the start he was put on the bench. What is this if not a deception and why should Ronaldo not be outraged?
The drama is bad from three sides.
First Manchester United did not want to release Ronaldo or open with transfer offers. Maybe they did care about income from jersey, ticket sales with Ronaldo's effects.
Second, their coach, Ten Hag did not know what he want from Ronaldo and how he can use Ronaldo but he rejected to let Ronaldo moving to another club. They both promised a lot with Ronaldo in the summer.
Third, Ronaldo was disappointed and reacted badly but he should not blame it all on Manchester United and Ten Hag. He is no longer a young player and his reactions are bad at his age. At least he was given some chances but generally his performance was bad. If he want to get more appearances, he must play better with any chance he gets from Ten Hag