Acts like how? Like wanting freedom to wear whatever they want? Or debating on an internet forum?
No one should defend murderers or terrorists, but here every day there will be defence coming up for the actions of India, Israel or any other non Muslim that commits crimes.
I do agree that people should be careful when they decide to move to another country and consider the fact that the extremely tolerant and liberal western society may not tolerate things like veils. Islam doesn't require covering the face btw, the girl could have stuck with just a headscarf. Her dressing, her choice, just like their country, their rules.