Browsing through this sub I got the example of George Orwell (credit: u/Phuxsea) who was an "antifeminist" and also exposed and wrote about male disposability. Are there any other such writers or intellectuals who have spoken about Men's rights?

Also, was Heinlein (the sci-fi writer) a tradcon who viewed males as disposable? It seems so because of the quotes I have seen of his on this topic.