I have seen two sides of the camp from left-leaning people, though not necessarily binary.

A: They accept there is an issue of father's rights, sometimes tagging the cause due to misogyny.

B: They deny there is one, stating that they are abusers lying to get custody, as well as using women's abuse and "token" (don't like the word) fathers to deride them and their arguments.

I more or less want to know more about the issues fathers face, as well as whether certain accusations are close to reality or not.