Your attractiveness depends on things you have no or little control over such as height, jawline and hair.
Even in the areas you do have some control over such as income and muscular mass not everyone is in the position to bring them to high enough levels to compensate for lack of the qualities you don't have control over. Just think of how much a 5 foot man should me able to earn to attract a woman. being attractive is very hard for a man as highlighted by the fact that women rate 80& of men below average.
Being unattractive will also negatively impact your income. This is especially true of height with over 9 out of 10 CEOs being above average male height and averaging at 6'3'' whereas the average American man is 5'9''. A correlation between a CEO's salary and their tone of voice was also established to exist. A man value is largely based on how attractive he is to women while a woman's value is inherent.
When your girlfriend checks out or makes impressed comments about other guys there is no appropriate reaction
If you protest you're insecure and don't deserve her and if you're apathetic then you're a cuckold and not a real man. On the other hand all it takes for your girlfriend to freak out is to read your sister's name on your call history
Economically and as a whole men are required to carry society's burdens
The average woman has a negative cumulative fiscal impact throughout her life which men must account for with their taxes. The picture below is from an Australian study. Basically, men pay women to stay alive.
You can't talk about problems that affect males as a group without being smeared as a misogynist and often censored
While feminist blogs, articles and subreddits are full of sass and gloating, movements like the MRA constantly bring up good points but to no avail. simply daring bring up men's issue will automatically get you labeled as a misogynist.
Are there misogynistic men's tight activists? Yes, but you can more easily find feminist blogs advocating for the murder of all men, yet that doesn't define all feminists.
Men's health is under attack by xenoestrogens and nobody cares
In the last 20 years sperm quality has declined by half and testosterone by 20%. According to researchers this is due to synthetic chemicals in our food, air and water, which as used as pesticides, solvents, plastic components and much more. Unfortunately, since the issue mostly affects men, there is very little mention of it in the media.
Unless you're one of the very few highly attractive men you're only loved if you can provide something in exchange
While women are love unconditionally, men must deliver the goods when it comes to love or simply basic social, emotional validation. As an example of it the chances of divorce increase massively if the husband loses his job but not if the woman does.