Comments are based on the assumption that current miners hold their signaled position.
[snip]
I see the current Bitcoin wonderful success as a very large ocean liner, used by a lot of people. Useage patters like oceanliners turn slowly. So while there may indeed be longterm ways around the existing exchanges (and damn I hope their are), I don't see that as having much effect in 2018 while Bitcoin-from-segwit2x rocks on and Core-ALT-Bitcoin is a low volume altcoin trying to get listed.
[snip]
I see the current Bitcoin wonderful success as a very large ocean liner, used by a lot of people. Useage patters like oceanliners turn slowly. So while there may indeed be longterm ways around the existing exchanges (and damn I hope their are), I don't see that as having much effect in 2018 while Bitcoin-from-segwit2x rocks on and Core-ALT-Bitcoin is a low volume altcoin trying to get listed.
You're making alot of assumptions
It's unlikely that people will choose to transact on the S2x chain, Bitpay and Coinbase aren't enough to keep it going, alternative to both have existed for years.
And the "who's calling what an altcoin" stuff is a pretty funny joke. It doesn't matter what's called what, it's about the overall technology model behind the coin that counts. Being called "Bitcoin" isn't a magic trick that makes something valuable money, unfortunately
