Launching telescopes is not a viable alternative to ground based telescopes. They are completely different scales. We would need large scale orbital construction facilities or a space elevator to bridge that gap. We don’t need to develop every square inch of the planet to support humanity, we don’t take up that much space.

No, but it's one of three places on Earth that have dark skies this good.

The fact you don't know Paranal host many more than "one telescope" doesn't surprise me, as your are obviously very ignorant of modern astronomy.