The proposed SegWit2x bitcoin hardfork is relevant history here. A majority of centralized entities like exchanges and businesses initially supported the 2x hardfork. However, in the end the "bunch of randos" won out as the 2x hardfork was abandoned.

In general with blockchains, drastic changes are hard. Whoever wants to make a drastic change faces an uphill battle IMO. And especially if the majority of users support the status quo, I think forcing them onto a new system will fail.