Elon Musk is a certified lunatic and shyster... Eventually, somebody is going to figure that out. When they do his house of cards will crumble into dust and a prison cell will be waiting for him.
As for traveling to Mars, that will happen eventually, without Musk being involved of course, and we do get there we will find the same thing on Mars that we found on the Moon... Nothing. We can do space exploration, so we do. The question is... Why bother?
Sorry Elon (and others). There are no aliens. This big blue marble is it. Other life forms in the universe? Absolutely. Other life forms that build rockets and travel about needlessly in space ships and Tesla Cars... Nope!
If the creator has found it fit to never make one snowflake like another, why would he bother to make one world like another world? We are completely unique and therefor alone in this universe. Nobody is ever coming to save us, so we’ll need to save ourselves.
I never really got the interplanetary exploration thing. I guess it’s lack of oxygen and how to freight it there that gets in front of my logic for it.
Lunatics and shysters don’t reinvent multiple high dollar transportation industries from scratch. Yes he’s leveraging opportunities, but that’s why those opportunities exist.
Your Luddism is showing. Not to worry, humanity will ignore you and move on, as will Musk. Musk has already done what NASA failed to do.