Good lord. Yes, hopefully somebody smarter gets hold of that and shuts that nonsense down.
The men making those complaints are ludicrous babies. There were dozens or hundreds of screenings they could attend - why do they need to object? They lost nothing.
Can you classify women-only screenings as "discriminatory"? Sure, I guess you can, but why would you want to? What sort of man is so threatened by a cinema giving those women two hours of man-free movie? A sad, weird, pathetic kind of man with a startling lack of self awareness. This is a farce.
No. That's not how discrimination works. The lawsuit exists, and needs to exist, because there are still people that think discrimination against specific people is OK.