Heathen,
Through the courts, the government actually does interfere with dress codes when and if they violate what are considered to be basic human rights. For example, a strict no beard rule in the workplace could discriminate on the basis of religion since certain religious groups such as Orthodox Jews and Muslims wear beards for religious reasons. Therefore, a lawful no beard rule must make exceptions for religious (and medical) reasons.
The point here is that a dress code policy may be either lawful or unlawful depending on how a particular requirement is observed and enforced. This may seem like a fine distinction, but it?s really not.
Although religions are afforded broader protection than employers, the principle is the same. Teachings that are not necessarily wrong in and of themselves may be observed and enforced in a morally objectionable manner. You mention Jewish observance of Kashrut and Catholic avoidance of contraception and these are both good examples to illustrate this.
Judaism holds pikauch nefesh (preserving life) as the very highest of all mitzvoth. Simply stated, this means is that when human life is in jeopardy, most of the rules don?t apply. Kashrut can be suspended to save human life and this is one of the reasons that the Jews regard the JW transfusion medicine taboo as absurd.
Although Catholicism does suffer from the inflexibility of Christianity in genreal (e.g. There is no such thing as a ?minor? sin) the encyclical of Humanae Vitae is not observed and enforced in anything resembling the approach JW?s have taken with blood. The Church does not crush all plurality of thought as an official policy, it does make certain exceptions (e.g. Treatment of ovarian, uterine, testicular & prostate cancers even when the treatment results in sterilization) and it doesn?t attempt to directly police the lives of its members. (Can anyone imagine NFP committees?)
I agree with you that the government should not step in and tell people what to believe and how religion should be organized but I also agree with HS. A religion can?t take this as carte blanche to trample all over the rights and welfare of its members. Once this starts to happen, who else but the government can put an end to it?
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