And if you think anyone, without even considering gender should just be believed without any evidence, then you too, should go fuck yourself.

A judicial system does not function on feelings or beliefs. It functions on science. You need evidence in order to consider a position fact. Potentially ruining people's lives because of personal feelings, is fucking evil.

Edit. The person you replied to mentioned nothing about assuming women are lying, all they said was that they are capable of doing so.