We're in a budget crisis right now though, with fundamental moral, legal and philosophical disputes over the proper role of the US government. We already have a majority of the states openly challenging federal authority, and the federal government openly scoffing at the idea that there are limits to its lawful power. (Pelosi: "Are you serious?!") It's hard to justify any new government programs while that dispute is unresolved, even as relatively small as the funding would be. Figure out first whether it's okay to have a self-proclaimed "radical communist" serving as a White House adviser, for instance, before deciding relatively minor things like whether to increase one agency's funding. Otherwise we'll just be arguing past each other from completely different premises.
I'm definitely not taking the common position, "Let's solve our problems on Earth before we go to space." This is more like, "Let's figure out what we're trying to accomplish before we set out."