No one who really supports BU would support that, as we obviously want the legacy blockchain and everything that comes with it, including an undiluted asset. We want Bitcoin to scale , not an alt.
But let's assume that the Unlimited alt works great and people find it more useful than Core. Over time more and more people move across and it usurps Core. It could happen more rapidly than anyone expects.
It would be out there. It would be working. Its creation wouldn't be mired in contention. People could make what they wanted out of it without endless conjecture.
In that scenario it started off with a snapshot of the original chain and eventually it squirts past it out of pure merit and in circumstances with no baggage whatsoever.
If it's founded on the original chain, attracts most of the users and miners from the original chain, it becomes the daddy chain by market consensus. It would be hard for anyone to question or resent its success in that scenario.
I could agree with that. You might even say that it would be even more respected and 'cleaner' since it would have none of the tainted history of Bitcoin (mt gox, etc). (Doesn't mean forking off will get much support though.)