You want to talk about the problems of categorical logic: it's all in how you define your categories.
For example, is someone a Christian or are they a transcendental idealist expressing themselves through Christian ideals?
Makes good sense then.
In fact, metal by transcendental idealist Christians would be perfectly allright -- but it would upset most people who call themselves Christian. After all, Christianity is many things, but if you read too much into Christ, you get a morality of submission to the will of the Crowd through equality. This backward logical inference -- people are important because they are people, not because they're important -- helped ruin Western civilization, at least until we can get it back on track.
That kind of thinking... those people, people who believe that, never do anything important. Their brains are already sterilized. You'll find that most Christians who aren't dipshit proles are semi-misanthropic, quasi-nationalist, primally conservative and warlike.