you can do nothing, no matter what you do, they will still attack and demonize you, that is until you follow their religion, their culture, and their way. the Quran already told us this, they will NEVER be satisfied with you until you do this.
now im not saying we should not combat the extemists, because we should, but what i am saying is dont count your chickens, dont believe for one second that even if you do manage to combat the extremists and shut them up that all of a sudden the anti-Islamic anti-Muslim bigotry will go away.
many anti-Islamic are already comming and out and saying that all Muslims are the same, all radical, all bad, and no such thing as a moderate, that Islam itself is violent and extreme. that Muslims who do good and combat the bad guys are merely using deception to dupe the none-Muslims to eventually take them over.
what does the burqa, hijab, mosque minaret, halal food, and Islamic banking have to do with extremism???? to many western secularists they want to outright ban all of these things, and always demonize such principals as evil, and backward, and barbaric! also dont forget that if you support Palestine and the right to resist Israel you are an extremist as well, and that if you dont fully agree with western foreign policy and oppose it, then you are also an extremist.
heck if your a Muslim who supports Sharia, and wants Sharia in the Muslim world you will also be labelled as an extremist!
last but not least, the last i checked, it was white english hooligans going around england protesting and causing violence and mayhem on the streets of england, costing the government millions of pounds during an econamic recession, so who are the real extremists here, and who should really be combated?