I don't think that men's bodies are seen as undesirable (it is easy to do a google search for naked men that people find desiderable). Example: Chris Hemsworth, he has a career because he has what is considered a desirable male body. But I do think that now there is also unfair beauty standards for men. At least is what I see in western culture.
To my knowledged, circumcision is cultural. I've checked and US has the highest rate, while in European countries is lower. I agree that it is something that should be optional and chosen by the men.
As for men's sexuality being demonized, I think that only fans or porn tube cater mostly to male sexuality. And so do many, many films, TV shows, and plenty of products. Hell, even women magazines talk about how to be more desiderable for men. That is the opposite than being demonized. You are not shamed for being promiscuous. You might be for not respecting consent or boundaries, but that is not about sex even if it is related. Is about imposing what you want on other people. So, basically, you can be sexual, but only with people who want to be sexual with you. The problem is that some people have been socialized to just be sexual, regardless of what the other people involved want. So when the other people didn't want to be sexual with you, of course you are demonized. To put an example: no one cares if you masturbate alone in your home, but of course they would be angry if you do in public transport, looking at a woman who wants nothing with you. No one cares if you like someone, that person like you back and go to a hotel to have hot sex all night. But they would care if you decide that you like a woman so much that you "can't help" but to get her drunk and take her to a hotel room when she can't stand on her feet anymore for what for you is sex but she never consented for. There is clear difference between the two.
You ask for compassion, but many times you already have compassion. What you don't have is compassion after not showing it yourself and disrespecting other people's boundaries. As long as you respect boundaries, people would show you compassion. But compassion is not a free pass for everything.
As for jobs, there are plenty of jobs for men. Sure, you would need to pick the skills, some of them are social. But you can learn and chances are that you have it easier to find mentors in other men. People is saying that there is a workers shortage in US, so it might be a good time to look for better jobs or career changes.
