More every day sexism is viewed as largely irrelevant, shrugged off as unharmful and just a bit of fun. However as often seems to happen the ordinary paves the way for the extreme.
Sexism is often seen as a compliment, such as "you are too cute to have so many opinions"or "I would like to get a few drinks into you..."
This seems placid enough, but this baseline sexism paves the way for the introduction of concepts such as "grey rape", this is just the typical heterosexual male response after all, pretty woman=man want, so this too is portrayed as a compliment and as a healthy heterosexual male behaviour.
This is why sexism must be opposed at all times and at all levels.