[MrB]

To temper your argument,
I suggest you read Thomas Sowell’s “Conflict of Visions”.

[Vigilanteman]

I will have to get this book.

I've read his earlier book Vision of the Anointed which I suppose addresses much the same topic.

But my point remains that you can still believe innate human nature is good and be a conservative or that innate human nature is evil and be a liberal.

What side of the fence you fall on in the nature/nurture argument has far less to do with it than your proposed solutions.