Four different people have evaded my original question by focussing on the smaller issues, so I have my answer.

It really is threatening for many vegetarians to admit that anyone can be healthy and eat meat at the same time. They do indeed find it frightening to acknowlege it.

The scales are off, it really is about a doctrine that's as specious and inflexible as anything a fundamentalist preacher can come up with. Thank you for proving my point.