I know you’re being downvoted for the deep state comment, but for the most part you are correct: Federal Prosecutors routinely target high profile individuals and those that receive negative press.

Musk is incredibly high profile and regularly receives negative press.

I know Musk isn't exactly conventionally sane and tends to be erratic but tax evasion while trying to surplant big oil and muscling in on the auto industry, and grabbing space launche business from Russia would be a downright /stupid/ move.

You cannot reach the level Musk has reach without using all the tools to reach these levels, including tax evasions... with the complicit agreement of many "people in power". It just happens their interest coincide today, tomorrow's another day, interest shifts.