In the US however, this campaign came from the same think tanks and strategists associated with Project 2025 (taking cues from folks like Enough Is Enough), who are pretty upfront with their Christian Nationalist views. In Project 2025 they include a bizarre connection of porn with transgenderism that tips their hand on the religious bent to all this, but elsewhere in the plan outright state their Christian Nationalist ideals.
I expect the make-porn-illegal crusade is more common in the US than elsewhere.
First we hear that the people behind the push for online identity verification are Christian nationalists. Then, after being informed that the British Labour party is also pushing for the same measure, we hear that the common denominator between those factions is their crypto-fascism.
To call the Labour party fascist, you must be some sort of extreme Thatcherite. To call Christian nationalist fascists is somehow even less defensible, as fascism is strongly collectivist[1] and the American political Christian extremely individualistic.
This entire discussion points to a horrific crisis in civics education, which I believe can explain the increasingly authoritarian policies of modern western governments far better than some crypto-fascist plot.
[1] "Anti-individualistic, the Fascist conception of life stresses the importance of the State and accepts the individual only in so far as his interests coincide with those of the State", The doctrine of Fascism by Mussolini
So... national socialists and National Christians have a lot of overlap in the Venn diagram... to deny or miss those parallels seems disingenuous or ill informed.
I'm not informed of the British political landscape, so I can't speak to that.
And no, not every Christian is a NACHRIST, and it also isn't a coincidence that NAZI's co-oped and used Christianity opportunistically when it suited them.
And it's near universal because fascism is the major exception as it really doesn't desire any conformity from the designated inferior. That's what distinguishes the policies of NSDAP from prior cases of anti-Jewish oppression - the Nazi party wasn't interested in conversions at all.
As such, you really shouldn't call anyone ill informed on political topics.