> Oh yes, let's grammar-nazi the nazis.

Using wrong letters and ligatures (in Fraktur) has barely anything to do with grammar; this is rather orthography.

I don't think it's an attempt at correcting neo-nazis, but rather indirectly says that they only seem to use it as a signal: they don't care about (proper) use at all, just want to associate themselves with a (glorious?) past through marketing.

It’s a bit like right-wing Christians. They have a very shallow understanding of their sacred texts, but that doesn’t stop them from acting the way they think they should act because of what they misunderstood about Christianity.

I ask in "good faith": Name one thing we shallowly misundersand.

Not the person you ask, but Christians do have a habit of selectively applying scripture. Above all, right-wing Christians seem ill at ease with the bits about turning the other cheek, the good Samaritan, stewardship, greed, etc.

Ostentatious religious behavior (such as public devotion) while ignoring quite a bit of the core message of Christ comes across as shallow. The clearest case is Trump, who has possibly broken all 10 commandments, and commits 6 out of 7 cardinal sins.

Now, associating that with all right-wing Christians is probably a generalization, but this image is not helped by their leaders, and the complete lack of visible opposition against them.