Dems are trying to figure out how to deal with Big Tech. They are addicted to the cash but seem to see the scandals coming. Warren wants to break them up, Klobechar want to tax them.
Amy appears to be heavily beholden to them, given her idea that is going to 'make them scream'. To the question of abuse of privacy, she has an idea that will make them pay every time they use the data, and some how this is going to make these companies mad. Let's see, get the federal gov hooked on a revenue stream from a monopoly that the federal gov will need to regulate. That sounds like a proposal directly from silicon valley, all it does is cement their monopoly and will protect their abuse of private data.
https://www.theverge.com/2019/3/9/18257617/amy-klobuchar-user-data-sales-tax-google-amazon-facebook