It seems like there's a cottage industry of pundits making the case of false equivilancy between the unpopularity of the ACA and the unpopularity of TrumpCare, but this is really misleading. The ACA was unpopular, but not nearly this unpopular. While “Obamacare” didn’t poll very well, most of its underlying components are popular. Currently the ACA has become popular, and would be even more popular had the Supreme Court not ineptly re-written the Medicaid expansion.
In picture form, no major proposal in the last 30 years comes close to TrumpCare's current unpopularity: