The fact that Mexico is making progress on this is good to see, though also pretty embarrassing as a resident of the USA that our society is moving backwards at the same time.
We are fifty states. Many states are moving forward and some are moving backwards. It’s why congress needs to do something.
Congress can’t do anything because of the filibuster, two party system, and republicans though. The whole thing honestly needs an overhaul.
You can wait out a filibuster. You just don’t allow new business until they’re done. That means they have to keep talking and eventually they’ll run out of speaking ability.
The Senate not being population-based is part of the problem too. As are gerrymandering and not having universal adult suffrage or federal holidays for voting days. But a Constitutional Convention would be state-based, too, so we’d end up with something even worse than we have now.