Because right now space is a dead end. We don't have the technology to get stuff out of our solar system quick enough and we don't have the technology for proper colonization so, there is nothing out there for us.
Sure we're very far away from being able to travel out of our solar system or colonize but I wouldn't say there's nothing out there for us. Space is where a lot of our dreams and imaginations are fueled and if we just end it where it is now we'll never be able to reach what we've dreamt of achieving when we were kids just looking up and imagining what it's like up there
It's not like they take taxpayer money to fund movies. That money gets put back in circulation, it's not payed to some unknown source, that money doesn't disappear when a new movie comes out.
Michael. Fucking. Bay.