Most of what you wrote was reasonable but "littering in space" is a hilarious concept (unlike littering in orbit, which actually is a problem). You really have no idea how vast space is. It's simply not comparable to the idea of littering on earth.Just because a place is uninhabitable, does not mean it would never affect a future generation. Some of the smartest people are working on solutions for radioactive waste disposal... from deep bore holes, deep ocean, tectonic subduction into earths mantle.... to blasting it into space (which I find pretty disgusting... I hope if an alien race ever encounters a heap of radioactive trash that they redirect to sender.. it's essentially littering on the greatest scale possible).
Of course if you're going to get it to escape velocity (which, BTW, seems like a terrible idea, as it's a huge waste of energy) you could dump it on the moon. Or into the sun.
Not so, and that logical fallacy is one of the tools reactionary interests (the energy lobby and the coopted right) use to discourage people from supporting the move to renewables.Which means those customers really do not care about our environment.
Care implies sacrifice.
We are not going to sacrifice our way out of this problem (in general - in some isolated and specific instances, we may have to). We can't, because too much of the world (third-world countries, and most people elsewhere) won't stand for it. We solve this with better tech, or we die. Fortunately, the better tech is coming, and lots of it is already here.