Unfortunately, a mass terrorism campaign always causes fear and anger - the main purpose and it works.
These attacks across Europe have changed attitudes within EU countries towards Islam and Muslims.
I remember the unfair hostility towards Irish Catholics in the 1970s-1990s; the IRA killed people because of nationalism, not Catholicism and they paid lip service to following some limited rules of warfare.
Beheadings, deliberately murdering children, worshippers at a synagogue are far more barbaric than previous European terrorist campaigns from e.g. the IRA or ETA. So, more of an emotional response.
Some large "Not in My Name" marches after attacks on UK and EU vistims would be brilliant to counter this. We saw umpteen Irish peace marches that showed how most Irish people felt - even brought a Nobel Peace Prize.
As it is: we just see large marches against Israel, but few Muslims marching in protest against far more murders, enslavement and rape of Christians by ISIS
And there are more UK Muslims in ISIS than in the British Army
And surveys consistently show a substantial minority of UK Muslims think homosexuals or apostates should be punished.
Even on Mumsnet, Muslim posters keep complaining about Mistress whose posts are no more hostile than anyone else's - but who is an ex-Muslim "apostate"
Most of us have frequent contact with lovely individual Muslims, but unfortunately terror atacks cause terror, so we tend to remember the occasions when a Muslim man startled us with medieval attitudes.
So, yes, Muslims could change attitudes if they stood up more publically for nonviolence, like Irish Catholics did, so we could remember Muslim peace marches instead.