I heard someone on YouTube stating that if Trump had won the popular vote in 2016 while losing the electoral college, his supporters would have rioted and Republicans would have successfully pushed to abolish the EC.
Do you think this line of speculation would have been accurate?
[FYI: FiveThirtyEight's final forecast on Election Day 2016 indicated that there was a 0.5% chance of Trump losing the EC while winning the PV, so this scenario is certainly not out of the question, however far-fetched it may seem.]
Nothing would change
I don't know about his supporters rioting but they definitely would have successfully pushed to end the EC provided they accepted the legitimacy of Clinton's win. Despite what it may seem most Democrats see that the EC is unfair on its merits and would agree to end it even if they benefited from it in one election.