For most of our history, the Electoral College simply went the way of the popular vote, and it was redundant. But we're living in a highly contested political period where that's no longer the case.
Allowing a minority of voters to rule a majority of the country (as happened in 2000, and again in 2016 -- and could conceivably happen again in 2024 and beyond) is a recipe for unideal government, and civil strife.
We're the only country that calls itself a democracy and has anything like the Electoral College. When other countries were setting up their democracies and looked to America for inspiration (as many of them did), they left out the Electoral College, for good reason.
Supporters of the Electoral College say it favors citizens of small states. While that's true to an extent, that's not a good reason to effectively disenfranchise citizens of large states in equal proportion.
Further, that's not what actually happens as a practical matter. No candidate makes a stop by Wyoming - even though it's small, it's solidly Republican and will be for the foreseeable future. There's no reason for either candidate to make a stop there, or to consider Wyoming's interests at all. The same could be said for other red states like Idaho, Arkansas, and Mississippi. The same could also be said for small blue states, like Delaware and Rhode Island and Hawaii.
What the Electoral College actually does is super-empower voters in a small number of large-ish (and Electoral Vote-rich) states that fall in the category of "swing state." These days, that list is easy to recite: Pennsylvania, Michigan, Wisconsin, Georgia, Arizona, and Nevada. (Former "swing states" like Florida, Ohio, Missouri, and Virginia have all gone solidly Republican or Democrat.)
Voters in "swing states" might have a greater say in our future, but they also don't particularly like all the outsize attention and campaign ad spending. Every 2-4 years, the entire American political universe descends on these small handful of states, and it's annoying and unnerving.
Abolish the Electoral College and what you'll see is candidates make their pitches to a much broader slice of the country. Both parties will moderate their platforms since they'll have to compete for votes everywhere. And we'll see higher turnout and voter engagement everywhere since voters, wherever they live, will know that their vote counts equally and fully.
Didn't mean to go on for that long, but thank you for attending my TED talk.