Reverse everything for at least a few decades and you'll understand. See how soon it takes you to get tired of seeing far too much of other men in ways you don't want to be constantly subjected to all the time.
Imagine if every film took any opportunity it could to show a male actor naked. So many movies do exactly that to women, and where is the rightfully deserved reverse? I get tired of being shown other women's boobs, etc in a film, etc all the time that really would have been just fine without it. Imagine if it was all *****. Every R film has a dick shot, even if they have to make up an excuse for it. Every hot male actor HAS to have a shower scene, because reasons.
Girls today at least have it a little easier that they can look up all the free pics, etc of naked men they want online. Porn still annoyingly tends to be aimed everyone EXCEPT straight women -- we, and what we like to see, apparently don't exist. Men will never know what it's like to grow up in a time, pre-modern internet, when as a teen you come across something pornographic and 99% of the time it disappoints without even one gimps of what you actually wanted to see.
Yes, being treated like we don't exist, have needs and likes, and aren't a worthy audience to cater to is frustrating.