I see little benefit in pining for something that isn't going to happen. Yes, we could be more like Europe, some day, but it's not going to happen very fast if ever.
So, I don't waste time thinking about it.
I saw a thing about where MARTA got some money in the infrastructure bill but it seemed most was slated for upgrades to existing stations. Not extending the lines, just prettier stations. (They are pretty utilitarian looking.)
I think some goes to proposed bus rapid transit lines. I saw three busses yesterday, not one had a single passenger inside.