If TikTok is just in the business of earning money they would've sold.
TikTok cannot be sold because the algorithm cannot be sold under the export control laws enacted by China.
Why would I sell my business just to appease some gangsters on capitol hill?
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.