They weren't unfriendly, but they were always brutal oppressive regimes. By trading with them, we became complicit in that.
Also, I take issue with the idea that we "made" them unfriendly. I'm pretty sure China and Russia can take responsibility for their own foreign policy.
Also, I take issue with the idea that we "made" them unfriendly. I'm pretty sure China and Russia can take responsibility for their own foreign policy.