Chill out, comrade. Before you seize the means of production, note that without private aerospace, we would not be going to the moon, or Mars, or beyond until you and I were long dead.
We scratched the surface over half a century ago and nothing has been done since. Your assertion that private "boondoggles" -- which alone indicates you don't understand the definition of "boondoggle" -- will provide little benefit is entirely baseless. There is indeed so much yet to explore that would remain unexplored for centuries if you were running the show. The protection of sites deemed of high scientific importance should be undertaken; it will also likely be industry players like SpaceX that gets those projects on-site at reasonable cost and on a reasonable timeline. It seems your opinion is rooted in emotion and ignorance rather than justifiable concern for the lunar environment, which has been left 99.999999% unaltered by human activity and will remain so for hundreds of years even if assuming the most optimistic of timelines for commercial development. Do you not fundamentally understand how difficult it would be to even "ruin" a patch of the lunar surface with a lunar base that could support a small town's population? Do you not understand that Artemis II & III are so often and reliably delayed that we'll be lucky to have fewer than 10 total boots on the regolith before 2030?
NASA hasn't "sold out" to private interests, and in fact, they could stand to manage the use of US taxpayers' earned income a bit more responsibly instead of throwing it at Boeing / Lockheed, enriching their lobbyists while burdening us with absolutely laughable cost-overruns for projects that aren't completed for a decade beyond target timing. Perhaps you prefer SLS (See: Boondoggle) do all the heavy lifting in space, so that none of this comes to fruition...ever. That would certainly preserve the lunar environment indefinitely, as you wish.