Therapy has become the new buzzword to prescribe to any individualistic issue because most people don't know what it is or who its for, they just think it's a silver bullet solution to everything because everybody else says so... but it's not.
Therapy is great for specific people with specific disorders, it's there to help provide these people with solutions and treatments to improve their conditions. It's not meant to be a replacement for a social circle or to fix the problems in your life.
Not to mention that therapy is either expensive or hard to access or the therapist you do get to see are usually not that great. It is very hard and very rare to find a good therapist that's affordable and nearby. Even then, a therapist can only do so much. They're trained to work through common disorders using several established methods, but not much beyond that. Therapists can help you overcome your anxiety, but they can't help you find meaningful relationships.
This is doubly true for men, because a lot of men are facing issues related to finding purpose and meaning in life, and that's something that's beyond the scope of therapy. Maybe these issues could be resolved as a result of treating a disorder, but that's not always the case. The point is that therapy is not a magical solution, and it's not going to solve huge societal problems like men turning their backs on society.