I am quite shocked that there are people in this forum like you.
CR7 made Sporting Lisabon a super team. Then he moved to Manchester and helped them to win 2-3 titles, including the CL. Then he moved to Madrid and got another two titles thereand 3 more CL trophies. Now, he is playing in a team, that was absolute champion in Serie 1 and he got Scudeto as well. Whenever he has played, his teams became a champions. He has won 5 Champions League Trophy, 5 Balond'Or, 2 or 3 Golden Shoes and Club World Cup in his resume.
Neymar came to Barcelona in 2013 and soon realized that he has to be the second man here. That was the reason to leave for PSG, where he had the same problems. Whenever he goes, he wants to be the main man. That is his biggest problem. I am sure, he thinks that he is even better than Messi, even though, he has praised the Argentinian as the best. That is for the cameras and microphones only.Deep inside, he believes that he is # 1 in the World. Cristiano has difficult personality as well, but he has class. Wherever he goes, he always win the CL. Neymar is a trash, comparing to CR7. Now he wants to come back, because he couldn't win the CL in Paris. But the day he steps at the Camp Nou, he will start creating problems. The very first one will be with Jordi Alba, because of his playing style . Just wait and you will see what I am talking about.