US Politics

And if Biden wins, then he's not likely to be as incentivised to change the process that got him there.

There must be some incentive - as @Greenbank says, they've won the popular vote every year bar one for 20 years but only had 8 years of power. I also doubt that Biden is under any illusion as to why he's where he is, he must appreciate that at least some of his role is to strengthen processes to stop another Trump happening rather than the creation of a personal legacy.

There's parallels with our fptp system isn't there? An obvious, fatally flawed somehow no doubt, solution would be to make electoral college votes proportionaly allocated per state. I can't imagine that kind of change will ever happen.