Seems like the other players need to step up. Till then, I'd think he considers himself to be one of the few competent players on the team.
He couldn't bring a team to Pl or CL wins 10 years ago. The other players were also excellent, the managers were great. He was just a standout between all those players.
If you think he looks out of his depth now, what do you think of every other player on the team?
He did bring teams to the CL and league wins, of course other players helped but the whole team adjusted solely to optimize his play, both at Manchester and Madrid.
Rooney and Benzema had to sacrifice a lot to make space for him and do his defensive work, hence they started to put a lot of goals after he left. However, at that time it was worth it because Ronaldo was just toooo good.
He put like 50~60 goals a year, that's like two world class strikers in one person.
You see the current Ronaldo, still world class but he bags in about 30~40 goals a year. Which is world class but is that enough to build a team around?
The truth is the 'current' Ronaldo is not good enough to make his teammates sacrifice just to fit him, he is now in a level where he needs to adjust to the team. I hate to say this but if you don't see that your understanding of the game is limited. Adjusting to the team means doing all the defensive work and work as a unit rather than just focusing on scoring. If he does not want to do that then he should accept starting from the bench and players who are willing to do that should start.
And just to say, I'm not suggesting that other players and the managers are safe from criticism. They all need to do much much better, and Ronaldo is also one of them.