Yeah I don’t really understand the he is alone sentiment.
Like his space craft is still up there just need to teach this guys how to make a rocket
If it’s been long enough that the earth is destroyed if one man can travel across space the rest of humanity could do the same.
It would definitely be an interesting plot in case a colony craft ends up following his path and reach the planet on a later time
he would need to be put under cryogenic sleep again in order to be able to meet another one of his kind.
information can only travel at the speed of light at the fastest, and we can assume that it's been a great many of those
Simply the nearest stars are 4-5 light years away, let alone a system that can sustain intelligent life. It would have to be even more extremely far away, considering how dedicated we as humans have been to logging the stars around us.
The general sentiment towards humans right now is that they're gross and evil, so admitting their deficiencies to gain knowledge from him wouldn't work in the state of the world right now. Even if they did accept, it would still easily take decades to build a space program from the ground up on an unfamiliar planet.
The issue is that we simply do not know what is happening back at earth. Maybe you're right and more people are going to follow in the coming times. Information takes so long that at even the speed of light (impossible) decades or even centuries could pass before earth comes to know of what happened to our MC, if he even has the ability to communicate like that. Maybe he could try sending out some radio waves or something