Speaking of uninformed partisans, electors can't be bound for any reason,
including in the current electoral college system. That's what 'faithless electors' are. lol. States get around this by selecting electors out of a slate of basically party hacks who are nearly guaranteed to vote the 'right' way, so this 'problem' is literally no problem at all. The result under the national popular vote system would be identical to the current system insofar as how the results are translated into EC votes. You did not think this through, haha.
Also, if it's a feel good/do nothing law then there's no reason to oppose it. Since I know you want liberals to feel good I can assume your support for this from now on?
By the way it's really funny when you try and accuse other people of not understanding something and then make it obvious you don't understand it yourself.