I don't care who's barking about what and if they're consistent about it. Either there is or is not an underlying risk we should aim to minimize.
As far as what I might want to see, since you asked: for one, I would like to see more rigor around the acquisition process to eliminate or even undo some of the consolidation. I won't pretend to understand the details of how or what needs to change, but I am more than open to taking a hard look at things like WhatsApp and Instagram being acquired by Facebook and what kinds of power centralization that enables. I hope smarter people than me will do that research and make intelligible cases so we can all hold evidence-backed positions.
Look at the valuation, never mind the societal impact, of these companies -- data is worth far more than your average consumer realizes, at least once it hits an inflection point, and our laws don't currently reflect that. Maybe they should, maybe they shouldn't. I welcome the discovery, and don't feel like we need to be anywhere near a solution yet.