The actual left is generally against that sort of thing, and even significant factions on the right don't want the kind of government control, what you should be concerned about are liberal centrist people.
I hate to break it to you, but Greenwald is just another "I was a teenage leftist" Republican getting ready for his book tour. He's been pandering to Trump supporters for a few years now...
He's a terrible example to cite if you want to support the actual left.
I mean, he has started spreading TERF propaganda on Twitter (because those particular brainworms always infect the new converts, for whatever reason). That and the Trump thing aren't minor ideological differences - they're fundamental, irreconcilable conflicts. There's no future for them.
Probably more like "actual left" in contrast to the milquetoast kind that passes for the left wing of mainstream US politics, which are center-right by global standards.
[0] https://t.co/9UuceYD2Xj?amp=1