You made me upset

In Japan, we have "only women car" in the loop-line train for protecting women from molesters. I often get on it and when I'm on it, I am really relieved. Today, I was on it as usual and I was astonished that some men were on this car. And I heard their strange chat.

Man 1:This is the only women car!! We need to change.

Man 2:We don't have to do it,look, it's not crowded and many seats are
vacant. We don't bother everyone.

What did you say? I didn't understand what he said.
Obviously,here is "only women car"!! This is a role that everyone knows.
He made me upset.
What do you think about this?