As a counter, and to re-use your own metaphor, this position of "let's forget about mars and only deal with climate change" is equivalent to saying to the man without a parachute "you'll be totally fine if you just put on a parachute". Despite the fact that he's a smoker, has a missile locked onto him, and is busily aiming himself at the lava pool of an erupting volcano as he falls.
You seem to misunderstand that nobody here said climate change isn't urgent, or that it should be less urgent than getting to mars. Or that it's not worthy of more resources at the moment than getting to mars. The point being made is that we can and should be doing both at the same time.
Are you serious right now?
That's like berating someone who took a dive out of an airplane without a parachute about their smoking habit.
Actually it's not. I'm a liar. The time it'll take someone to fall 5km vs their smoking habit killing them is still about an order of magnitude from 100 years / 10 billion years.
You're either not hearing yourself or having a laugh.