No, the issue is more bidding process shenanigans and regulatory overload from labor to environmental to local. It’s become prohibitively expensive to do large

No, the issue is more bidding process shenanigans and regulatory overload from labor to environmental to local. It’s become prohibitively expensive to do large public works in the US of all sorts due to these things. It’s not just subways, it’s bridges and tunnels and all other infrastructure that would be amenable in sprawling megalopolises.