Why are women so evil?

Woman are not particularly evil. Woman are good at seeing weakness in others, which they quite often will use to their own advantage. A man who is desperate to find love, will be used and abused, often with a lighter wallet. A man who abuses his right to live and others, will have a lot of woman wanting to do the same. It all comes down to the fight of the strongest, which unlike men, woman are more passive about it.

Answer:

In many places, the Scripture tells us all are evil - no distinctions:

Ecclesiastes 9:3New King James Version (NKJV)

3 This is an evil in all that is done under the sun: that one thing happens to all. Truly the hearts of the sons of men are full of evil; madness is in their hearts while they live, and after that they go to the dead.