Republicans are basically anti free market in the last decade. Protectionism, tariffs, corruption, politically driven favoritism. Democrats have their own issue, but they are basically more free market than Republicans at this point, which is a sorry state of affairs
She’s trying to be populist, riding the current sentiment against FANG. This will likely kill her candidacy for Dem candidate as many will see it too extreme, and threatens to cripple too many large companies with hundreds of thousands of jobs at stake. Using this argument of platform utilities, every company with cloud services like Microsoft, Adobe and even startups like Magic Leap would all fall under this large umbrella - she doesn’t realize the far reaching implications of her words.
Yes, since Trump got into power, big banks can now begin managing and investing in other people’s money while financing those same companies and investing in them all under one roof. Banks will argue they have walls in place, but then you can use the same argument to allow the big tech companies to stay in place.