His instagram followers make up a sizable chunk of the fanbase.
I dunno, to be honest.
Or rather - I don't doubt that many of them do identify as United fans (of some kind), but Ronaldo is increasingly becoming a very divisive figure within the fan base. For every
Ronaldo fan, there is at least one
United fan who is a bit sick of both Ronaldo and his followers.
Also - and more importantly - I think Murtough/Arnold have ETH's back (for now). They will support ETH if he should decide to marginalize Ronaldo for football reasons. If they fail to do that (again, for now) they will a) look ridiculous and b) earn the wrath of those
United fans I mentioned above.
Ronaldo doesn't have that much leverage here, as I see it. Either he fecks off (and all but the Instagram gang are pretty happy with that) - or he goes back to work
under ETH, in whatever capacity ETH has in mind for him.
(This is obviously my personal - and rather optimistic - take on it all, but I don't think it's wildly unrealistic.)