Miss, you still dont understand. Exposing the thigh in Islam is actually Haram. Do you think that by letting a bunch of people walk around half naked you will desensitize these people so they will say "Hey, you know even though the Quran tells us this is wrong it aint so bad"?

They generally dont bother with non-muslims and what they are wearing but perhaps as folks such as yourself feel it may be their duty to expose the locals to such they have decided it is going too far.

As Senorita said, not our place to bend the rules in our host country, no matter how trivial or silly we feel they are.
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"Diplomacy is the art of saying 'Nice doggie' until you can find a rock - Will Rogers"