> No. Space is not lucrative or profitable

Yet.

To be clear, I don't support SpaceX specifically, but the amount of resources available to us from beyond our planet are quite literally infinite, only bounded by our ability to move fast enough to get it.

Comets that routinely pass by our planet have rare-earth metals in quantities that we don't even have on the planet at all. Hell, that's where our rare earth metals came from in the first place. Getting access to 100 million tonnes of platinum could totally change how we use the metal, right now it's most effective use is probably within catalytic converters to reduce emissions from cars.

Helium-3 and Deuterium in high quantities can be used as clean fusion fuel, basically clean atomic energy.

I struggle to see how these can't be lucrative in the long term.

How does 100M tons of platinum safely deorbit? Is the idea to let it crash into the sea?