Musk & Trump have been talking about defunding CISA, FTC and SEC - that is, removing information security oversight, consumer protection oversight and financial oversight.
Musk is financially linked to China through EV battery production. It's no stretch of the imagination to think the PRC has some influence over him, which they've been building for more than a decade. So, Musk buys TikTok and expands his reach over social media (public influence), the PRC continues to have access for surveillance and influence campaigns, and Trump also benefits from the surveillance and influence. Everybody gets a piece of the action, and the federal agencies which would investigate, expose and attempt to block these relationships are disabled.