They don't. At all.
Given the choice of 6 Glazers with full control, or 2 Glazers with no control it's a pretty simple choice for all of us.
The "buy the whole club" option seems to be a non starter, so if you don't support the 2 Glazer choice, by default you must be in favour of keeping all 6 at this time?
To be clear, I don't actually think anyone would actually prefer that, but this faux outrage over the proposed bid from Ratcliffe just doesy make sense when you factor in the clear unwillingness of Joel and Avram Glazer to sell their stake at this time.
Once again, the only way this deal is acceptable is if Ratcliffe gains a controlling stake and effectively takes over the club.
For all the rich kids bluster and the vast wealth of Qatar, even they cannot force those who don't want to sell, to sell. Ratcliffe new proposal is about as close to a confirmation that they won't sell as we are likely to get, so the smart play for any bidder is to adapt of they are really determined to become the new owner of Manchester United.
Fans crying "full sale only" are literally saying it's either all or nothing... And well, that's support for nothing isn't it?