Mars One https://en.wikipedia.org/wiki/Mars_One received over 200,000 applications for a one-way ticket to Mars & raised money way too easily, before going bankrupt.
Edit: BTW, since you already posted it there, if you copy the URL for the uploaded image, you can re-use it and lemmy will detect that it's the "same" post and show the cross-post link to the other post.
Nothing would please our billionaire overlords more than all of us "little people" getting the hell off earth for another planet. It's unlikely anything comparable to the paradise of this planet, even in a global warming event or an ice age, will be reachable any time soon.
It depends on the severity of the situation. I would only leave the planet for this purpose if it was a potential extinction event. Otherwise it would have to be an actual invasion of my area of my country. I am not a good citizen.
Heavily depends on the planet and the aliens. I'm not about to kill cute peaceful molerat people on a desert rock of a planet. This sounds like terrible time to me. If it's some sort of Strogg situation on a decent Earth-like world though count me in.
I think it's honestly sad how people think aliens would invade and overthrow us. We have so many conflicts on this planet that we just assume other planets would be imperialistic as well.