Good effort and some good points, unfortunately also some wrong things...
Cristiano scored more goals than most teams in cl during the cl winning years, without him they would have already lost vs wolfsburg in 2016 😳 his hattricks vs atletico and bayern lead them to ginal in 2017, would say they would have won 1 in that time without him
If we look at Messi, he won 2 cls during the team where Spain 2x Euros and 1 WC while without Barca he scored 0 in Wc10 even though he played well there. So Spain which was lead from Barca's midfield won 3/3 titles while Messi won 2/4 cl with them. Difficult to imagine they would have won less with Messi.
As said then 3 finals which were lost and in 2 cops finals where he won he was worst player on the pitch. WC he had great moments, the number of pens is a bit sus but i will give credit for his assists. So as you see its normal that a player benefits more a team than the way around. I woulf also agree that Cristiano needed more real than opposite way, i think thats normal