Islamophobia is a "phobia" in the sense that most of us do not hate ordislike Islam ... we are actually scared of it.
The only question over the suffix is ... is it irrational to be scared of Islam?
Presumably not. If (even inadvertently) you offend, question or criticise Islam, or if you portray Islamic images, even affectionately, you might be killed.
If you are in the wrong public place at the wrong time, you might be killed.
If you do a job that followers of Islam dislike, you might be killed.
If you visit an Islamic country, to do good, you might be killed.