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Your answer for #1 was right.
I'm looking at #2 now.
"Why is abuse generally a difficult topic for men to talk about?"
It is true that most abusers happen to be men.
But that doesn't answer the question.
The question is about men who have been abused, themselves.
Why is it so hard for THOSE men to talk about it?
The reason is because abuse, especially sexual abuse, is socially classified as a "women's issue."
Rape is a good example.
Men who have been raped, are less likely to report it, than women who have been raped.
Take a look at this article:
The reason for this is because our society sees sexual crimes as a "women's issue."
In order words, "men ought to be too manly to be raped,"
which is ridiculous, really.