I'd actually argue this is
not true, but I'm very biased as pretty much all my friends who like Star Wars are women. The fandom spaces I'm involved in are very heavily female. And the cons I go to are 50/50.
(Fun story: I won the Star Wars Day at Sea trivia contest a few years ago. During the final round, after my turn and everyone cheered, my husband yelled out, "THAT'S MY WIFE!"

)
It just always amazes me when men want to be so gatekeepery regarding the stuff they like instead of, you know, INVITING women in? It's like everyone who made fun of the two guys in our drama club in high school for being "gay". Meanwhile they were the ones hanging out with girls all day long!