I'm perfectly comfortable with not landing 100t of material on either the moon or Mars. Have yet to hear any compelling argument for why we should except that ermygoerrdd sci-fi!!!11!!
Ok I misunderstood your argument. The fact is, its the governments planned to build a base. If your opinion is that instead we should build a base at the bottom of the ocean, you are correct, Starship is not a good engineering solution.
In fact, anything not in space wouldn't be ideal.
But that's a political choice, and Moon base is what NASA and congress are working towards.