I am not sure if this is the right place to ask but are there any mods that clear the rubble? I was going to play through again but the thought of having to deal with the metro tunnels makes me want to play another game, lol. So are there any mods that open the streets so I don't have to constantly venture underground?

I think that DC areas are in a different "world" than the rest of the wasteland and can't be accessed directly. The only thing that could help you bypass the tunnels is some mod that enables fast travel points.

x4lien pretty much summed it up. The different DC areas had to be split up and separate from the Capital Wasteland because of performance issues. The DC areas are already very resource-intensive as it is (a lot of different objects using a lot of different textures), and having all of them in one area would just make that worse. A mod that put them together would have WAY too many issues. Navmeshing would have to be completely redone, quests rescripted, etc. Unfortunately, we're stuck with them being separate.