There are a few bishops who talk to Voris behind the scenes. I’m sure that if he publicly criticized the Pope, even those few contacts would disappear immediately.
Then those bishops are just part of the problem. MV (and those “few bishops”) is going to have to decide on whether to speak the whole truth or not. If not, then he is impotent and irrelevant.
Hopefully we’ll eventually get a real bishop who has the guts to do so....like St Athanasius.