SegWit will not even work unless 95% of the miner hash implements it.
One mining pool with 8% hash has stated they will block SeWit, and want BTC unlimited instead.

95% is a huge number. I don't know the data, but I really hope the you are wrong. Because then this will take a (too) long time to get traction...
And BTC unlimited.. is an altcoin. If they want to mine altcoin, nobody forces them to stay on this chain....
And if they leave this chain, their 8% doesn't matter anymore.