Now to your questions lol.
I've never supported Medicare for All because it basically involves nationalizing the healthcare industry. I hate to keep bringing up Pete, but his healthcare plan from his campaign is where I'm at. Basically open up Medicare to everyone, and if they want to use it, let them. If they want to keep their private insurance or Obamacare insurance, let them. Pete basically revived the public option amendment that failed when the ACA passed in Obama's first term.
The Green New Deal was always a pipe-dream among leftists. There is no way it would pass Congress. It is too much, too fast. Also, it is very anti-nuclear power, which is frankly just dumb. I think an "all hands on deck" approach to power generation is best. You have coal in your region? Burn clean coal. Desert? Build solar farms. Want a nuclear plant? Build one. Natural gas deposit down the street? Natural gas plant. Plus, a diverse platform is not as beholden to worldwide whims of the market. AKA, don't put all your eggs in one basket.
Tulsi is a leftist populist, same as Bernie and the Squad. They are the Blue Hats to Trump's Red Hats. It is a running joke at some online places, but horseshoe theory is actually a thing. When one gets too far to the left (or right, for that matter), they start to mirror those they "oppose" on the other side. Populism is the common denominator here. For populism to function, there has to be an "enemy", an "other". Without it, the entire ideology collapses. Tulsi, Bernie, and the Squad employ the same talking points as far-right populists. They will throw whatever marginalized group they can under the bus if that means they can attain their goals. They reduce solutions down to class and class only, and there is always that pesky "other" shadow hanging around, messing everything up. This is why you see hardcore right-wing folks and Fox News randomly say at times, "huh, that Bernie and Tulsi is alright after they said 'x' thing!" when they would never in a million years say the same for Obama, Pete, Amy Klobuchar, Jon Osoff, or any other liberal.
Liberalism is antithetical to everything populists believe in, regardless of what side of the horseshoe they fall on. For example, "culture wars are a distraction", a common complaint among the far-left, is code for "**** them gay folks, forgive my student loans".
I'm a center-left liberal dude. Some on here have said I'll be a libertarian eventually. I don't know. But I do know that when I read a statement from Tulsi and I can't tell the difference from a hardcore Red Hat, that tells me horseshoe theory is real.