Don't just blame Obama, the toothless Congress is the built-in balance to keep this from happening but they all just sat on their hands and looked the other way. They were neither willing to fund it nor stop funding it. 

  They want it both ways, they want to be able to say 'look at me I vote against ACA and for repealing it' while letting it continue so their constituents gain the benefits of the ACA while voting for the folks that say they'd stop it if only they could.

Now look at them, they have every chance to repeal ACA, years to replace ACA and Trump has said ENOUGH! Do your job.