I have seen men say nasty things they absolutely meant and bond by bullying other people. That dynamic is actually very common among men. You literally see it in male only social groups (such as army or prison) where bullying someone is how guys show in group membership.
You also see men say nice things they dont mean ... frequently to a women they then badmount or mock behind their backs.
Eh... if you're fat, and your friends call you fat, they mean it. You're fat.
They just don't mean for it to hurt, and that's the wholesome part. Every time they call you fat, they're showing you that it's okay with them that you're fat.
If you're fat, and your friends tell you you're not fat, then to me that implies that the truth is too awful to say, but for your sake they'll pretend you're a different person. Which to me seems like it really underscores that it's not actually okay to be the way you are.
Recently a lady was telling me that she wasn't taken seriously. When a male colleague proposed something that she proposed years ago, people suddenly accepted it, she said. I explained her about 'implicit pecking order' in company culture and 'he is taller'. Then she said "yeah i'm short". Then I said yes but you are perfect the way you are, and I think she appreciated that.
There's bias in _every_ company, every culture even. The bias is towards age, race, height, beauty, weight, as well as gender. I live in one of the most inclusive countries in the world and work for a very inclusive company. Still, pecking order and biases exist. I think it is human nature and maybe it is fine even.
there are so many potential confounders in that story that might influence why the proposal was accepted. maybe his co-worker just proposed it too early and no one was ready for it?
I think there is some truth to this old saying. If so, it would make sense that both sides find the way of the other side a bit off-putting.