What inputs? You mean the fact that she follows cute dog videos? I'm sure China is going to use that against her somehow /s

Yes her data, meta data about your network, devices etc. Just because you arent a target based on that data, doesnt mean someone isnt.

Her "data" is mostly liking cute dog videos. China can have that data for all I care. Meta data about my network, devices? If China really wants to know that I'm on Spectrum internet, and have a few other devices connected, sure, go ahead. I monitor my network and haven't seen any suspicious traffic that would worry me.

They dont want your data, but your data being worthless isnt an argument. You arent the target.