I also support the Glazers leaving because of course, with a rich businessman like Jassim, of course Manchester United will become a strong team later in the title race. So yes, if the Glazers still don't accept the offer, then surely there won't be any major progress for Manchester United. Even though without Jassim at least Manchester United can still survive in the Premier League standings, but this will not give Manchester United a chance to win the title. Because of course, if Jassim can take over power, of course Manchester United will have the ability to compete well and strongly against Manchester City.
It's not about whether the person is rich or not, but whether he wants to build a good club or not. If Jassim just want fame by buying a club, I think it will be useless. However, so far I look at his seriousness in buying MU, and there are already several plans ready to be executed if he succeeds in buying MU, of course this will be a major reshuffle in the MU staff positions, which may from here have many problems so that the transfer of MU players is not as expected in the last few seasons..
Maybe you missed some information about how worthy Jassim is for Manchester United. But most importantly, Jassim has been a Manchester United fan since he was young and as such, it certainly isn't just for fame and/or other interests. Because I think Jassim's goal is clear, Jassim loves Manchester United so of course Jassim will make efforts to build Manchester United to be even better. Therefore, I really support Jassim to have power at Manchester United because then, of course, Manchester United will be able to have even better abilities in this increasingly difficult competition. You can see how Newcastle has developed after being owned by a new owner from a businessman from Saudi Arabia, they can really grow well.