Desecrating flags is not something I particularly consider to be free speech
Of course, there are types of free speech I would ban such as glorifying terrorism. That kind of thing which is totally alien to civil society and, of course, which threaten to undermine it
Terrorism is in the eye of the majority. We already have laws against inciting violence. Why restrict free speech any further? (Granted, inciting violence is also in the eyes of the majority to some extent, but much more limitedly.)
Everyone is entitled to voice their opinion on anything but that which incites violence, or glorifies it, crosses that fine line between civil liberties and taking liberties Flag burning doesn't really have to incite anything. It can just be symbolic.
While many people, undoubtedly disapprove, of such things as the Patriot Act and wire-tapping since they believe that they infringe upon civil liberties, I take the opposite view and see such measures as enhancing the civil liberties of those who don't pose a threat to it
How does it enhance civil liberties? (Fair question...) It may make people safer, but that isn't enhancing civil liberties. It's still reducing them.
But, as I've said as far as the flag is concerned, I consider it sacrosanct; therefore, inviolable
Why consider it? It's cloth. It's symbolic, but you're not burning the thing of which it is a symbol.