The impending implosion of Obamacare has been the talking point of the Republican Party since day one.  The only reason it might implode is a complete failure of the Republican majorities in the House and Senate to do nothing to prevent it from happening. For eight years the Republicans have done nothing but work to repeal the ACA. That is reminiscent of the twenty years the GOP said they were working on a plan before the ACA.  So now with twenty eight years passing the Republicans still have no plan.  
Anyone who wants failure is not concerned with the citizenry of the country. The mantra has not changed since before the ACA passed. It is and has been the lack of real concern on how to deal with the largest cost to citizens that simply die without healthcare they can afford.  
There is something wrong across the country when you look at the cost Americans pay for medical services. Who are we suppose to rely on to govern a system that is now the overwhelming use of Americans income?