Its only a conspiracy theory if its more than one guy.
Not a native speaker but “guy” is gender neutral for a while now, at least on the variety used online. At least from what I know
Litmus test is the “Would you have sex with a group of guys?”
If you’re picturing a orgy with hairy people holding shlongs, then it’s not gender neutral.
You are correct but you can’t get away from pedants online.
I know because I’m one of them.