Why is America so religious in the first place?

[Okay, maybe Mike Johnson is a competent parliamentarian.]

but, I think Japan is off topic for comparison since it's not even a Christian nation.

Japan's irreligiosity is also massively overstated relative to actual quotidian life in the country, even by Japanese people. I've said on this site in the past that Japan is probably one of the only 'low religious identification, high religious observance' societies on Earth. It's certainly the most extreme example that comes to mind.

[Okay, maybe Mike Johnson is a competent parliamentarian.]

but, I think Japan is off topic for comparison since it's not even a Christian nation.

Japan's irreligiosity is also massively overstated relative to actual quotidian life in the country, even by Japanese people. I've said on this site in the past that Japan is probably one of the only 'low religious identification, high religious observance' societies on Earth. It's certainly the most extreme example that comes to mind.

Despite over 60 years of so-called athiest government, I also find that China is definitely more religiously devout than anywhere in the western world, save the southern US. Though overt discussion of faith will elicit laughter.

Yes, very much so. The Asian way of 'doing' religion, if it wasn't always very different to the Western way, has certainly become so over the past century or so, with secularization being mostly superficial in many countries.

[Okay, maybe Mike Johnson is a competent parliamentarian.]

but, I think Japan is off topic for comparison since it's not even a Christian nation.

Japan's irreligiosity is also massively overstated relative to actual quotidian life in the country, even by Japanese people. I've said on this site in the past that Japan is probably one of the only 'low religious identification, high religious observance' societies on Earth. It's certainly the most extreme example that comes to mind.

Despite over 60 years of so-called athiest government, I also find that China is definitely more religiously devout than anywhere in the western world, save the southern US. Though overt discussion of faith will elicit laughter.

Wait a minute... China is the Western world? When did this happen?

'Than anywhere in the Western world', not 'Than anywhere else in the Western world'. I don't think the attempt was to suggest that China itself is Western.

[Okay, maybe Mike Johnson is a competent parliamentarian.]

Less population density and no state church.

As weird as it sounds, American Christianity is tribal.

And the Canadian ecumene is small enough relative to the size of the country that this might not be the case there (at least, not in the Canadian 'heartland' along the St Lawrence and Great Lakes), plus the whole ambiguous history of Catholicism in Quebec. Makes sense.

[Okay, maybe Mike Johnson is a competent parliamentarian.]

We are on the verge of a revival that would make the First Great Awakening look like child's play.

i don't know anything about the "First Great Awakening", but I highly highly doubt we're on the verge of a revival.

You should read up on it, jmfcst. I'm not saying that to be snide or something, I genuinely think it would interest you a lot.