And memes like the dignity of labor, the just world fallacy (that wealth and poverty have inherent moral dimensions) and welfare (or leftist/secular ideology) breeding laziness definitely have their basis in Christian influence. I've seen people quote the Bible directly ("If a man will not work, he shall not eat") when criticizing UBI.
The just world fallacy in particular is going to hit people hard. People who believe society owes them safety, stability, a job and a living wage simply because they worked hard and obeyed the law are going to be hit with a rude awakening when they realize how capitalism actually works.
Opposition to UBI (as well as healthcare for all, proper schooling for all, nutritional food for all, etc) is about not wanting to pay higher taxes and maintaining a competitive edge in being able to obtain resources over others in society (or the world).
Those with more wealth (or who think they are capable of gaining more wealth) want to prevent others from having it, predictably.
Removing tax advantages of healthcare from employers? Oppose.
Removing exempt status or even raising the minimum salary under which an employer has to pay overtime? Oppose.
Lowering the cost of education? Oppose.
Parental or sick leave? Oppose.
Outlawing non competes? Oppose.
There's always some reason, which I believe to be a façade. The consistency and fervor with which they do not want labor to gain negotiating power is revealing. And, of course, always in support of tax cuts.
Edit: I'm not supportive of the first group because the policies as stated are wishes, not actual policies. For example, any real healthcare for all solution has to have a plan for dealing with the millions of people who are employed by the current healthcare system (which admittedly sucks) and who will be replaced by a new one. Similarly for UBI. It requires completely overhauling massive federal and state bureaucracies that have a lot of power.
I agree with you that many people who are against those things are they way you're describing, but many are not as well.
The big ideas seem like wishes, but I think it’s completely doable. But a sizeable portion of the population opposes even the baby steps I listed, and I can’t deduce any reason other than they like to imagine themselves in the owner class and want to keep down labor.
Mark Miller
Sally Baker
etc...
There are, and has been, hundreds of different cultures. Some have similarities, some are profoundly different.
(I'm not trying to dismiss your whole point: I agree with everything else you wrote)
These cultures didn't emerge from a vacuum completely in isolation from one another. Their similarities and commonalities are what form the basis for these categories, broad though they may be.