Well that's my rant. The Superrational way to play is in a way less greedy. So although I'm late in the game its still fun I believe the segwit2x community is more selfish at a deep level.
Excuse formatting. On mobile
Segwit2x is an attempt to steal the "Bitcoin" brand, it's as simple as that. This sums it up and everyone can understand it without having a doctorate in game theory.
The rabbit goes indeed really deep with bitcoin's governance model. Those that really care about Bitcoin and want to keep it sovereign will never align themselves with corporate takeover attempts such as segwit2x, but you always depend on a certain hashrate to keep the legacy chain alive. I think this is the case once again, the so called 95% support for 2x is fake and will be proven fake soon.
As 2x chain dies and 2x tokes are dumped, the legacy Bitcoin supporters will end up with more BTC, which means more power to attack further forks. We already saw this BCash. People that dumped BCash now hold more BTC, which means more power against forks.
The problem would be if miners actually left the legacy chain and there would be no way out but a change of PoW, which is a hardfork within itself, so im not sure if we could call any chain legacy anymore.
You are 100% correct about Segwit2x being a greed driven product. I would say you are wrong about Game Theory not playing a part. Because of it being a Nash Equalibrium (all players do not have to change their strategy based on the other persons decision to recieve the reward.) When one of the 2 chains becomes compromised then logically one will have to change their strategy to keep the equalibrium. So the 2 chains logically must settle down at some time so their is no problem at all for supporters and non-supporters in way of economic gain but the point was raised interestingly that greed is the strategy behind segwit2x. If over %50 percents of the mining power leaves the original chain then that chain should follow suit immediately and dump the original coins into seg2x. I mean all said and done it is just a way to get instant cash. There is to much money into it now for bitcoin itself to go anywhere. Hard forks like BCCash are just alt coins that don't require the work of starting at the bottom