what hashrate will support this if 99% are on SegWit2X chain?
I think most people that support bigger blocks will support the bigger chain. Unlike with ETC where the reason for existence is a bit more religous.
But maybe i am wrong .... we will see.
I think having two chains would actually be a good for bitcoin as it would allow people to move onto their chain instead of fighting with each other and it will bring a market solution.
However short term a split would be costly.
I dont think 8mb is a big. However any static limit does not solve anything so this seems all very silly to me. Not that the other solution has an actual better way to increase or adjust the blocksize.