I'm not saying space exploration isn't important, I'm just saying that letting the government take charge is a really poor choice.
And in due time it will be mostly private sector. The thing is government spending is necessary for a research entity with no chance of profitable returns such as NASA to exist. And NASA is a necessary entity.
As it stands I'd be willing to bet money that politically speaking you lean towards the conservative side. And for that I'd like to make the broad statement that you are wrong. Feel free to argue.
If you REALLY want to stop wasting tax money on useless stuff, protest foreign aid or something. Just not a vitally important R&D organization. And don't start on defense contractors either. They are what make countries tick whether you like it or not. Just wait until China's research sector kicks into gear if you want to know the meaning of world superpower.
Besides that I've been awake for 13 hours and I'm impressed I can form a coherent sentence. I'll get back to you with an actual argument after I sleep.