This isn’t a particularly hot take. It’s been a steady drumbeat since at least the instantiation of NASA… and it’s probably traceable all the way back to the folks standing around eating raw meat and laughing about the fool trying to tame fire.
The two biggest drivers for innovation are exploration and war. Exploration is the useful force in your proposed endeavor, teaching us how to survive in hostile environments and giving us insights about other resources or natural systems that we can adapt to our own. Exploration keeps the human race learning, thinking, and working together. You need those things.
What isn’t going to help you is the piddling handful of spare change that is spent across the world on space exploration. If your goals look inward, I respect that - you’ll have better returns by reforming the health and education mafias that siphon cash and stifle innovation. You’ll find more money and progress by far if you can divert funds and engineering focus from the military to environmental renewal.
What you shouldn’t want is to stifle any existing area of peaceful collaboration and innovation; this isn’t an either-or, it’s a yes-and. The target should be any societal aberration that makes it harder for people to get higher on Maslow’s pyramid. You’ve got valid goals, but bad aim.