Given its history, Islam is something to phobe about.
It is not a “phobia” if the Islamic ideology really does inspire fear.
When confronting Islam (a word that translates as “surrender”), the non-Muslim is given three choices - Convert to Islam, and become one of us; Don’t convert, necessarily, but submit to the superior authority of some demon-entity known as Allah, and become slave to the wishes and desires of those who act in the name of this Allah; or, Be subject to being put to death at the point of sword. The death is most classically by beheading, with the stroke of said sword, but a bullet through the back of the head while in a kneeling position is just as effective, or in extreme conditions, simply clubbing the intransigent ones to death will do just as well. Whichever way, it involves spilling of life’s blood, and extreme prejudice.
In any circumstance, the threat of being killed for failure to conform always stands. Muslims will even kill other Muslims if they are not the “right kind” of Muslim.
And the highly nuanced reasons for taking issue with other varieties of Muslims are often much too arcane for non-Muslims to even comprehend.
Conservatives don’t generally act out of fear of anything. That’s the job of liberals. Scared of standing up to the tyrants of the world. Scared of giving the free market a chance. We might not like the whole LGBT scene, but doesn’t mean we are scared of them.