As a normal Bitcoin user i can't do anything besides crossing my finger and hoping for Bitcoin to live another decade, but i am feeling that it will not make it because instead of the two group joining to make Bitcoin more better than any crypto currency they are divided and competing to each other.
And this is the point majority of the crypto community find themselves as the ones that understand all these technicalities are only few. When this debate started, I was lost and even don't know what to do but I was unpertubed because I know I am not the only one involved in all this and today, I made a decision which I am willing to follow through. @Op, I feel the time for argument has passed and it seems some group won the show as you have rightly elucidate what is left now is for everyone to wish its successful because if not, everyone will be affected.
I personally blame the gulliable fools who pushed for this "upgrade". The guys who were desperate for an upgrade because they believed the FUD about Eth or Ltc replacing Bitcoin. Ok fair enough, Bitcoin transactions were becoming slow and expensive BUT the system was secure and safe. But now we have to accept this hasty upgrade which might destroy Bitcoin.