Morally superior? Evolution is more relevant. In the old days before machine guns and nukes, prejudice, violence, oppression and death were cost effective. The dominant group of humans took the resources, spread their genes, and assumed dominant roles. Do not confuse tribal thinking with morality. They have nothing to do with each other, save in how tribal thinkers ignore morality a lot. Was this anything to do with moral superiority?
Similarly, the amount of physical work done was greater and food available was less. Eating more and saving up energy was necessary in the occasional glut. The greater work done with less food kept most people in a healthier place. Are we evolved for the current situation of machines doing the work and plentiful food? Is the apparent change in our handling of calories or in the environment?
I’m a bit heavy myself. While I didn’t make the record Tim apparently did, I’m in a similar place. I just don’t consider it a moral failing. We wound up doing what we were bred to do in a changed environment. In a while, with genetic tinkering, we could optimize ourselves for a new environment. In the meanwhile I am not inclined to blame ourselves for how we evolved, or consider people different because we’re fairly typical.
Morality? Should we care for the environment? Should we be into prejudice, oppression, and violence? Should we try in this age of Covid to save our family and neighbors? Why go to a conservative for morality? Unravellings are for selfishness. Conservatives cling to a 'me first' ethic and decline to shift into the 'for the common benefit' mood of the crisis. You ought not to expect a based on morality stance from a conservative. That's the position of the other guys.