According to past Supreme Court rulings on Religious exemptions, the belief does not have to follow any logic nor pass any test. One merely has to have a belief and the employer must provide reasonable accommodations. The reasonable accommodations is where potential problems arise for the faithful.
Then ppl should refer to the Supreme Court ruling on the questionnaire. Also ask HR if they require the same form for Muslims who want a special prayer room or a place to wash their feet or a halal diet. I’m sure the requirements are much less onerous for that religion. This mandate BS has got to stop, but it won’t until we stop playing the game, FFS!