Yeah I’m aware of those arguments and I’ve chosen to dismiss them as a player scoring a shite tonne of goals is never anything but a good thing. Which in itself is painfully obvious.Like a lot of things, it's only "painfully obvious" if you look at it narrowly and try not to think about it too hard.
There's a pretty well-established argument that Ronaldo has made Juventus a worse team, despite his profligate scoring. They've gone from being a team with good balance and organisation and lots of goal contributions from a large number of players, to being one focussed on supplying Ronaldo with scoring chances. The net result have been that they've been markedly less good the past two seasons than they were before CR arrived. He's not a player who makes his teammates better, he's not a player who makes the collective better, and he's not a player who's focussed on team rather than individual results. It's hard to imagine him fitting into the sort of quick passing game we have offensively - he has fittingly been called a "ball vortex". Once you give him the ball, he generally keeps it, until he loses it or shoots. He puts up goals, but what good is that when as a result his teammates score much less? His team is worse, not better. You can't just look at his goals stats and ignore everything else.
In addition to the one posted above, there's no shortage of available comment and analysis making this point better than I am. For example:
Has Cristiano Ronaldo Made Juventus Worse? A Critique of the Portuguese Professional Footballer Who Plays as a Forward for the Serie A Club – The Science Survey
He's obviously a great player, but he is exactly what the club should not be doing at this point. I don't want him in the team, flat out. Even if he didn't cost a penny.
Change Martial this season with Ronaldo, what happens? We probably run City extremely close and do a much better job of holding onto first position.