Firstly, the guy isn't qualified to make such a sweeping statement about the opposite sex. So before we even step into the problems with why it's a dumb idea to say such things, lets just make it clear that he's a physicist and not an anthropologist, biologist, or sociologist.
We definitely care about his moral character, but it's also just flat out incredibly naive to discredit women in his field when they've been playing catch-up for years due to cultural boundaries in the sciences.
Any scientist who steps out of their lane to attack another gender or race deserves every bit of what they get. It's cowardly to use your position as a scientist in a completely unrelated field to justify your hatred for some other group of humans.
Moreover, the guys history is terrible. He's got a chip on his shoulder about women and unethically chose to use his platform as a CERN scientist to exercise his anger.