Let them do it, sit back relax and watch it go down the slippery slope over the decade.
Perhaps long after reversible transactions, inflation/deflation according to economic factors and a more sane transaction storage practice are in it finally becomes a usable payment system one can call a currency. Nobody except the victims of the pump & dump will shed a tear about the fixed coin supply if there is real economic growth.
interesting approach
What you describe there is certainly not the bitcoin people sign up for today though.
But i'll probably personally really take the approach of sitting back and relaxing. Speculating on alts just became a lot more rational.
I'm pretty confident the original Bitcoin chain will live on for decades though.