A conversation between my husband (25M) and I (25F). How would you feel about this?

My husband and I have been married for 8 years and have 3 kids together. He stays following random girls on every social media, scrolling their pages and liking multiple videos which are always of thm showing off their bodies or something along those lines. He also SAVES their videos and goes back to watch them. I have ALWAYS brought this up to him how it makes me insecure because I clearly don’t have the looks or the body they do, after having 3 kids. Every time I bring it up he blows it off like it’s nothing or acts like he hears and understands me and stops and then starts doing it again. When I brought it up again today, he continued to make my insecurities my own problem, telling me “Reality check coming your way now. If these women who I think are hot have shit that you don’t. Then fucking go get it. Big ass? Go to the fucking gym. Big tits? Go get a quote for fake tits if it’s that big of a deal. Abs? Go fucking do some sit-ups. You want your body toned up? Then you have to work towards that. You wake up every morning whenever you want to wake up or if the kids wake you up.” And “just cause she has a fat ass, takes care of herself, and it’s got my attention, you feel threatened”