No one forces you to stare at the girl. People see offensive shit every day all over, but society doesn’t conform to all offenses equally, does it? Why is your ethics enforceable, but other people’s aren’t? Why does she have less right to practice her ethical choice to expose her body (assuming by your answer you would have offense)? Why is it more ethical to have others right to view taken away than for you to simply turn your head away? Ethics is very subjective, especially when there is no direct harm to either party.