Really, I'd say it's important that we do pause space exploration and focus on the current issues still here on earth. Don't get me wrong, I LOVE the idea of development in space, building more space stations and advancing space industry (space elevators, factories, hydroponics, solar collectors,) and going to the moon, venus, mars, the asteroids and beyond, and hopefully in the long run terraforming the latter 3. And I think there's a bunch of worth in it by just extending human society (which has the potential to be beautiful,) and nature (which is beautiful.)
But it'd be far better and even far easier if we did that with a properly functioning planetary society. Have green infrastructure all in place so we can build spaceships and such with better efficiency. Having the entire earth developed so we can work towards these things better, and having it developed in a way that humans can live comfortably in space, within a good society that's pleasing to live in to all.
Of course, there's not that much of an argument for what's going on because we're still doing very little to actually build a good society on Earth.