I agree that there are other forms of cancer that should have more funding allocated to them, and that political activism causes more money to be spent on breast cancer research. But is it true that testicular cancer is more common? I don't even know anyone who had testicular cancer, much less died of it. I do know quite a few women who have had breast cancer and some who have died. Anecdotal, I know, but you'd think that if testicular cancer was so widespread people would encounter it more.
Breast cancer is over 100 time more common.
Some people post misleading medical information for unknown reasons.