Sexual assault? Who to believe

So i know i’m going to get a whole ton of shit for this (i dont really care though) but looking all all these cases on tv about women coming out with their sexual assault claims years later, are we always just supposed to believe them right off the batt with no proof?

Is it completely forbidden to believe a man when he says he didnt do it?

My heart aches for women who are real victims of sexual assault but how do we just believe someone with no proof? Ending a man’s career and life just on women’s assumptions?

Thoughts?