More important to his success - it seems to me as an outside observer - were his promises to do things that are not possible but sound appealing to voters. Reopen mines, open factories that will offer many jobs to low skilled workers, and so on, to build a symbolically protectionist wall without paying for its construction.
Or the business culture which is very unique, at least I've seen nothing similar anywhere in the world.
Then there's a degree of freedom of speech that nowhere else exists, and rights like being allowed to carry a gun in public which is vigorously defended by large parts of the population.
And yes, there is an American brand of Christianity. Even if you don't see it in population centres it's still there everywhere else and it is more important than Christianity in most other Christian cultures.
There's a kind of attitude among US citizens leaning towards some Classical Liberal or Libertarian principles that can't be found anywhere else in the world. Where ever else you go the majority expects the government to take care of every member of the society from cradle to grave.
Just FYI that's actually different depending on local laws. I don't live in an open carry state so I very much don't have the right to carry a gun in public. Not unless I went through the rigorous process to get a carry permit.
I can't name even a single example where societies, even if it is only at a state level, generally allow citizens to carry a gun in public (without having to acquire some special permission that only very few people have access to)
If there is some other society that allows this then it's probably an Anglophone country.
The US has a gun-culture where collection of guns is done without any overt reason. In Urban areas, guns are basically never really owned, much less carried openly.
I was making the point that America is full of disparate views, and that there is not a single "American" culture.