Doesn't Alex Borstein in the show have a Valerie Solanas thing going? At least by her look, one might think she really is supposed to be Solanas except that she wasn't in New York during that period.
Interesting theory. They have used fictionalized versions of actual people from that era: I read somewhere that Lenny Bruce's daughter is a consultant for the show regarding his character.
But Susie Myerson's character isn't a radical feminist, would you say? And I don't think Solanas managed talent. Did she?