I thought you were saying that having a VAT of 87 percent was 'European style'.
Yeah, for the most parts these things only work in European countries because they aren't free - just affordable. Not just because that makes the financing less daunting, also because people have a tendency to over-consume free stuff, visit the doctor more often than is really useful, not take their free college studies seriously, etc.
But just because Sanders' exact plan (which I don't believe Ocasio-Cortez has endorsed, incidentally) doesn't make sense, doesn't mean that something in that general direction couldn't be possible. It probably makes more sense to keep all this more on the state level and less on the federal level, though - both for political reasons and for practical ones. And the job guarantee idea is pretty far out there either way.
I'm also a bit baffled by infrastructure getting tossed in there - surely that's one thing you have fairly wide consensus over, and something that economists agree makes sense to spend money on, even if you have to borrow for it, since it enhances productivity. At least, if you support the right projects.