Thoughts on husband watching almost naked women

So me snd my husband have been together for almost 7 years, ever since the beginning I told him I found it disrespectful to watch any form of woman shaking her ass or anything of that sort it just made me really insecure. He said okay it’s fine I’ll stop until it’s a couple days ago I go through his Instagram and all over his explore page I see basically nude woman shaking ass and dancing and doing provocative videos and of course whatever you click on the most it pops up there and it really made me sad because of course i don’t look like then and I shouldn’t be comparing myself but he even admitted to his friend sending him videos and him clicking on them to see them and I asked him why do you even want to see them and he just doesn’t say anything. Am I just being too insecure or do men really just don’t care?