Are Liberals High On Dopamine?

I am reading an excellent analysis of PC behavior by Loretta Graziano Breuning, PhD, entitled How I Escaped Political Correctness And You Can Too. She says that biology drives PC behavior:

I looked for answers that fit reality as I’d lived it. My search led to amazing research on the social behavior of animals. This showed me that political correctness is biological. The brain chemicals that make us feel good are inherited from earlier mammals. They reward us for behaviors that promote survival in the state of nature. Political correctness stimulates your reward chemicals in primal ways.

I’m not saying we’re hard-wired. On the contrary, our neurons are not connected at birth. We connect them from life experience, and these connections make us who we are. Early experience wires you to expect rewards and pain in ways that happened before. Political correctness wires you to expect rewards and pain in specific ways. It’s hard to re-wire yourself after the neuroplasticity of youth, which is why people cling to political correctness even when they see its flaws.

I finally ripped off the PC goggles and looked at the world without them. You can say I haven’t escaped political correctness because it’s still there. But I have stopped filtering reality through the lens built by the gatekeepers of political correctness. I have learned to focus on the pleasure of my own choices instead of on solidarity with suffering. You can rip off the PC goggles and enjoy your own choices too. You’ll be glad you did!

So when people act in politically correct ways, as mammals, their brains are stimulated with “happy chemicals” such as oxytocin or dopamine: “mamamals seek safety in numbers because the brain rewards it with oxytocin” … “The joy of dopamine is released when you approach a reward”…”Political correctness promises new rewards, and shames you for seeking rewards in other ways.”

If this is the case, why are some of us not programmed to “get high” off political correctness”? In fact, when I hear people being PC, I feel mistrustful of them for being driven by PCness rather than the truth. Maybe the rest of us who are not PC simply get high from different values: life, liberty and the pursuit of happiness.