This might be ever so slightly off-topic and a silly question but why aren't sites like SHEIN being banned like Tik-Tok? They cause infinite harm, and clearly w

This might be ever so slightly off-topic and a silly question but why aren't sites like SHEIN being banned like Tik-Tok? They cause infinite harm, and clearly we're capable of banning big chinese sites, so why the holdup on SHEIN/Temu? I saw news about Congress members in the US calling for bans last year but nothing happened.