How do I have a discussion with my boyfriend about his negative comments on women?[MEN ONLY please!]?

So my boyfriend and I have been together for two years and anytime we have a disagreement we try to discuss it. The only problem is when he has something to say about women , I ask him why he feels that way. Whether I stay calm or not he always tries to turn it around as me being combative just because I don't agree [ if I'm not calm I'm too emotional and if I am calm I am being combative]. How do I express these concerns in way that is best for both of us. I try to be the most understanding person but it's becoming too much. It is my first relationship (REALLY late bloomer) and I'm not trying to write this off as a fail so soon. Though I think he may need therapy to address inner issues he may be having.

How do I have a discussion with my boyfriend about his negative comments on women?[MEN ONLY please!]?
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