Like what? What resource would possibly justify the incredible cost? No, not helium 3.
The world produces 90 million barrels of oil - that is, well over ten million tons of oil - a day. On the other hand, the Saturn V rocket, the largest production rocket ever built could take a payload of 90 tons to the moon.
And no one's been to the moon for fifty years.
I'm not talking about waiting till "all our problems are solved" - just waiting till we start dealing with the single immediate and existential threat. Our house is on fire. It is an emergency we need to deal with now.
Oh, don't worry - we won't. The billionaires will play their stupid rocket games and the planet will die.