If TikTok is just in the business of earning money they would've sold.
Who are they actually supposed to be selling to? Given the US has pretty active antitrust for now, I can't really think of anyone who has both the money and expertise to run it and would be allowed to buy it.
Why would I sell my business just to appease some gangsters on capitol hill?
TikTok cannot be sold because the algorithm cannot be sold under the export control laws enacted by China.