>>It infringes on no one else's rights, and if 'freedom from fear' is an argument then the things I mentioned ought to be banned from schools too and most anywhere else. You never know when a kid might put a plastic bag over someone's head. In fact, I understand it's something kids actually do to themselves today because of the buzz they get at about passing-out time. They use ropes and others' hands for the same purpose too, apparently.
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>I am not free to carry a knife to school. My rights are already infringed. It's wrong to then permit any group to have the privilege for any reason.

Obviously it's not wrong, else the Supreme Court would have said otherwise. These are very learned people who have to review the case and interpret the law, and I trust them on these issues far more than I trust myself.
The Supreme Court has had a few verdicts with which I disagreed but they know the law far better than I ever will.

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>What happens when a bunch of suicidal bombers show up? They're dying by blowing up stuff in the name of their religion. Should they be allowed to carry explosives into schools?

I see you've gone to the "How to argue online" rules noted earlier today. Rather than insult I'll leave it there.

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>What happens if one is holding a copy of the muhammed cartoon? Is it fair that several armed teenage boys should gang up on one?

Same comment as prior, adding that assault is not legal whatever the reason.

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>This is just asking for trouble. If the supreme court is making decisions we find distasteful and we didn't elect them, then what do we do? Protest? Ya, that'll work.

Democracies with Constitutions are distasteful at times. Because they protect everyone's rights, not just the majority's. And in this case, to my knowledge, it was not a criminal law that was at issue but some regulation of some school board.
People are working hard behind the scenes to overturn "gay marriage" in Canada, and it looks like they'll get their way eventually, some time in the next few years. So there are ways when people really want, to bring about change.