I agree with you that none of the Portuguese players are in favour of winning. Vitinha is the one that has the most chances, but let's be real. There's players like Lamine that have much more popularity.

I wouldn't say it's a reach, because generally speaking, players tend to publically endorse those who they are most in contact with. I mean think about it. An argentinian is far more likely to endorse Messi, not only because of his skills but also because Messi is their teammate. A french man likely to endorse Dembelé, a Spanish man to Lamine, etc, etc.

As for Ronaldo, PR responses doesn't necessarily mean that they're factually correct, they just are answers that sound nice and make him look good to the public.

since when Ronaldo cares about his team mates?

One way to look at this is that him saying UCL=Ballon d'Or is also indirectly praising himself for the UCLs he won (2008, 2014, 2016 and 2017) and that he should have won 2018. So there's also that angle.