Privacy

One of the PACs that supports her backs this

It all boils down to the fact that in thr U.S, it cant be enforced because our identity and SSN are tied together, and losing said SSN would be VERY detrimental, so companies cant ask for it (unless they have government approval of course).

In countries like Korea, KSSNs for example are used for registration purposes and more like IDs, while monetary business like banks would ask for TIN/RRN (Tax Identification number/Resident Registration Number). This distiction allows for online checks to process fine as SSN is essentially name, birthdate and very very basic details only. Korea uses it for instance to monitor game time of minors.

Because the U.S does not have distiction between IDs, theres absolutely no way without security problems without risk of identity theft because U.S SSN are used for extremely critical things like loans and banking.

She also supports other anti online freedom stuff, I think that's just her genuine position.

She co-sponsored it, so I imagine she and her staff know full well what the details are