No, what's stupid is continuing to drag up everything we need in space from the Earth's surface. We need to start using the resources of near-Earth space to enable space flight. I advocate expendables only to get us started toward that end -- emplace the elements of a resource extraction base on the Moon and start manufacturing propellant from lunar materials. When you break the logistical bonds of Earth, then you have true space-faring capability.
That's true, but I think that is a huge jump to make on expendables. If we are going to make that jump on expendables, we are definitely going to need some serious heavy lift capability.
Probably the most important thing we can move off planet is fuel production. The payload fraction is just too ruinous for that to ever be economical.