We need to spend more money on NASA and exploring Mars.
There are quite a few reasons why. Water would certainly one of them but it is more for the minerals that could be contained there.
There is nothing wrong with science and investigating the possibilities.
Unless you’ve got a ore carrier the size of the one in “Alien”, you aren’t going to make any money on a Mars mining operation.
And how are you going to transfer it down to Earth? Not in the ore carrier, you aren’t.
Also, remember, it takes about 6 months to reach Mars and 6 months back. You’ll lose a whole year on your investment just in travel time.
And Blackhole insurance is out of this world!