Unfortunately Trump isn’t alone in that regard - quite a lot of people reach adulthood lacking critical thinking and the ability to actually discern what is or isn’t a reliable and useful source of information. Add to that the propaganda machine of media empires like Murdoch’s and it’s no wonder people buy Trump’s inane ramblings.
They’ve really given up on being subtle about anything, haven’t they? This is a clear conflict of interest and yet I doubt anyone is going to stop Musk.