Fair enough, I guess. But even so it's not true.
Hemingway was most promoted in our generation by English school teachers -- who tend to be women and/or limp-wristed artsy-fartsy types.
(And he was certainly championed by such in his early to mid-career.)
Also, there is a school of thought that says Hemingway is/was very popular with homosexuals precisely because of his "manly men."
And some academics claim that homosexuality is one of the themes of his works -- especially his short stories.
Hemingway himself worried about appealing to homosexuals too much, supposedly.
Your generation is which, exactly?