That is not my impression at all. See all the attempts to formalize consent in a way that does not really square with human sexuality. Consent apps? Wtf.
Not to mention all the attempts to criminalize buying of sex, which is basically an ultraconservative position multiplied by -1.
I think China in general is a good example of why the 1D, and even 2D political spectrum is a bullshit abstraction.
> authoritarian communist regimes were/are so far left that they kind of wrapped around and became conservative
Placing autocratic "communist" states on the same axis as modern feminist professors makes about as much sense as placing someone like Peter Theil on the same axis as Hitler, in both cases one would have literally killed the other.
One doesn't go from tolerating gay people to persecuting gay people the more "left" they are.
> Stalin was very prudish about sex, so maybe they just don't fit into the same political spectrum
Or maybe tolerance of gay people and "leftness" are actually completely separate variables that we only lump together because we're trying to project our modern ideologies onto historical figures
There isn't any obvious correlation between left wing economics and social progressiveness other than the coincidental alliance that has occurred in the US. Authoritarian communist regimes were, obviously, authoritarian.
And finally, "sex positivity" and dumb sitcom sexual jokes aren't really the same thing. They often have "man stupidly objectifies woman," "having same-gender parents is inherently funny," "man is an idiot because boobs," or if you go back to like the 80's, "man has poor understanding of consent" as a punchline. These aren't progressive ideas.
So in conclusion, no at every level.
What country/party has this position?
As a naive European, that sounds like you might be talking about the left in the USA that is still far to the right of the European idea of "left".
(Posting from Switzerland, where not only is sex work legal, it's regulated and taxed)
That would be the end-state of what inevitably happens when you adopt leftist policies.