Don't be fooled for a second. His goal is to get to Mars and colonize other planets and outer space. In order to do that. The bulk of the planet, specifically the US has to get on the same page on all levels of society and government.
Elon wants a manned mission to Mars and several manned missions to Mars before the first human lands on Mars so that one crew can land, set-up forward base #1, and the second ship be right behind it and so forth continuously. That is a big project that will require massive government support on all levels. DOGE and being a patriot with Trump are just parts of that plan.