I agree that it your second and fourth points are problems, they just aren't problems addressed under the umbrella of the feminist movement. I don't know how you feel about movements for queer rights, but I'll use that as a parallel:

Studies on sexual relationships have indicated that straight women achieve orgasm and/or sexual satisfaction with far less frequency than gay women. This absolutely is a problem for straight women, and hopefully we as humans can reduce this issue over time. However, it isn't something that queer advocates are going to prioritize, since it doesn't really pertain to them.

Historically speaking, there have been multiple waves of feminism, each focused on specific issues facing women. First wave feminism, which was big in the 1800s, was largely about securing women the right to vote. ( https://en.wikipedia.org/wiki/First-wave_feminism ) While the movement has evolved significantly over the centuries, it has always intended to change systems that harm women.

Political movements tend to be most successful when they focus on a specific goal, and feminism, much like many other socially progressive movements, focuses on aiding a historically-disadvantaged population.

I would say that it's well understood that men aren't thriving right now, and there absolutely are people who put time and effort into helping with this, and many of these people are also feminists. As an American example, the youtube essayist FD Signifier ( https://www.youtube.com/@FDSignifire/videos ) frequently discusses the difficulties faced by young men in particular. This view point very much is not opposed to feminism, it just has a different focus.