No. It seems they are stuck on BTC or gave up on payment processing - I don't know. They support BCH but via Shapeshift to BTC (which of course takes huge fees).
Yes it seems as though they are forcing everyone to accept the large fees associated with BTC.
Yes. We got a lot of (major) businesses with us, when we forked. Sadly some of them are still stuck on the other side - though the fork turned out extremely successful IMO.
1) Look at all the businesses adopting BCH. In the beginning almost every person and business thought that BCH was pointless but then Coinbase etc. changed their mind.
2) And then Segwit2x got cancelled and then a lot of people and businesses realized that BCH was a great idea. BCH was what saved big blockers - if BCH didn't fork we would ....