I believe in applying feminist ideas to help men. It’s not that feminist ideas need to help men in order to be good ideas; it’s that feminist ideas are good ideas, therefore they are good ideas for men. Feminism is not obliged to help men, since that’s not really its primary goal; nonetheless, applying feminism to help men is a worthwhile project.
One particularly relevant feminist idea is “toxic masculinity”. According to the Geek Feminism Wiki,
Toxic masculinity is one of the ways in which Patriarchy is harmful to men. It refers to the socially-constructed attitudes that describe the masculine gender role as violent, unemotional, sexually aggressive, and so forth.
Toxic masculinity causes harm in two ways:
First, men are pressured to conform to male gender roles. For instance, there is nothing really wrong with being unemotional, and some of us just have more muted emotions than others. However, telling men that they are supposed to be unemotional leads them to be ashamed of the emotions they have.
Second, some of those male gender roles are in themselves bad. For instance, violence is generally maladaptive in modern society. A man who is socialized to be more violent could hurt the people around him, and could hurt himself as well.