Well, space travel in the U.S. is always a partnership between gov't and private sector, the question is the mix ratio.
Looking at Gemini, Mercury, and Apollo programs, were any of them built without private sector contributions? Of course not.
Right now there are a couple private sector options, Space X and Boeing. One has a great record of success, the other is struggling due to a very public issue (the two test pilots that spent how many months on the space station because no one knew if their ship was safe for return flight (spoiler alert, it was safe, but the only way to find out was to return the capsule).
If we are going to Mars, what are we going to do? Insist on federal workers building every component in-house or partner with an outside company? And if we are going to partner with some company, should it be a company that is five years late with the new Air Force one planes and hasn't had a an actual successful mission (yet)?
But Elon! DOGE! Oh No!
Please, spare me.
We can debate having a Mars mission, but don't shackle our Mars mission to exclude the most successful private space company because you have a political issue with the CEO.