Is Poland sfe for non white WOMEN to go to?
99% yes.
What about Russia?
From what I understand, while Russia most certainly has a much worse problem with racists than Poland has, for you it is going to be safer. The reason for that is that Russian racists are a lot more 'macho' than Polish racists and they see violence against women as something 'unmanly', so while they will be racist towards you, they won't be violent to you. The same used to be true in Poland but over the last couple of years there have been racist attacks (physical attacks) on women here.