Ronaldo wants to leave Man United because he still has ambitions to play in the Champions League and possibly wants to win the trophy with the team he will play for. Unfortunately, none of the clubs that play in the Champions League seem to really want to sign him. So I think it's time for Ronaldo to accept the reality and he has to act more mature and should put his ego aside. Man United has a very big role in Ronaldo's football career and with their current condition (which has not won a trophy for a long time), then this is the time for Ronaldo to return the favor to Man United.
After his attempt to move from Manchester United was unsuccessful, Ronaldo had to accept reality and had to be ready to play in the Europa League. Ronaldo was unable to realize his ambition because no club was interested in signing him, Chelsea, which was most often rumored to be Ronaldo's next destination, did not show any serious intention to sign him from Manchester United. Maybe it's time for Ronaldo to put his ego aside to help Manchester United out of adversity, at least until conditions improve so that he gets a special place in the hearts of Manchester United fans.
I mean I get it, he wants to increase his stats in UCL and all, and wants to keep playing at the top level, but he put himself in this position. Last year when he accepted to move to United, they weren't this amazing team that guarantees the UCL entry, that's not how it's done. Which means that we should be focusing a bit More towards Ronaldo being a bit harsher in the current situation.
I get that Ronaldo wants these things, but he accepted the offer and now he has to finish it. If he could have found some decent stuff then I would be understanding of it, but he didn't and he failed, so why focus on this and assume that it's the right of a player to get out, when he can't even find a team to pay his money?