ubi_now
Market failure does not imply government solution. You're going to need a much stronger argument than "companies aren't doing a good enough job."
Amazon invaded her privacy, she realized it, and now she doesn't use the product. If you want others to do the same, start raising awareness yourself instead of enacting nanny state laws with other people's money.
MMT doesn't model fiscal policy as unconstrained in real terms, only nominal terms. And given the legal authority, of course a sovereign issuer is always able to spend. In this case spending is merely typing digits into a computer. This fact doesn't imply deficits/debt "aren't relevant", but rather deficits/debt work very differently for the currency issuer as opposed to the currency user.