Mixed. Some parts of the film bring decent arguments backed by some statistics - I do agree that, while traditional masculinity isn't an inherently bad thing, shaming men for not being perceived as "manly" enough or for showing any sort of emotional in unnecessary and can be harmful. There's nothing wrong with showing some degree of emotion, provided the context is appropriate. However, I do feel like the extent of this issue is exaggerated in the film - the film portrays this slight issue as the root of most of modern society's problems, which is obviously inaccurate - various problems are nuanced and varied, and there is no one single thing to blame. I also find that the film is too limited in perspective - it shows only America, and I find that showing the or similar issues in other places would've been interesting, and the film just doesn't delve into how women may deal with similar issues, or how some may also share some blame in terms of judgement towards men who don't fit into their definition of "man". The issue simply isn't the fault of one individual, one thing, or one gender or group; it's nuanced, and the film on occasion forgets that. Finally, I issues with the final portion - it points its finger at various pieces of media which are completely cherrypicked, to silly degrees. Video games, for example, are picked on for featuring mainly the stereotypical "manly" protags - completely ignoring the fact the most video games have more of a focus on gameplay rather than story or characters. I scarily stumbles on the line of moral panic / calls for censorship, though thankfully doesn't fully cross it.
These problems don't completely ruin the flick. The camera and pacing is great, they do use actual stats and evidence, they interview various individuals. Some of the points, again, are well-argued. Just watch with a critical eye.