They consider them traitors to Islam.
My biggest bitch about the Abrahamic religions is that they reinforce our atavistic tribal instinct.
Since the Agricultural Revolution ushered in the Neolithic Era, we have been fighting to override the pack-social instinct of our nomadic hunter-gatherer ancestors. Like all pack-social predatory species, they
had to regard other clans as hated and feared competitors for scarce resources when there was a drought or any other reason for a famine. Agriculture created the first food surplus the world had ever seen, and suddenly it made sense for rival tribes to join together in larger communities, because economies of scale and division of labor increased the size of their surplus and allowed some of them to specialize in occupations not directly related to survival such as brewing wine, making music and inventing pottery.
But a few hundred generations is not long enough for our instincts to evolve, and there's still a caveman inside each of us. We bribe him with pizza, central heating and TV, but occasionally he has a bad day and goes Paleolithic on us, treating people outside his immediate family as outsiders who can be legitimately robbed and injured.
The problem with Abrahamism is that it tends to exacerbate this feeling of us vs. them. "
They regard Jesus as the One True Prophet, not Mohammed." "
They don't accept the authority of the Pope." "
They drive ambulances on the Sabbath." "
They don't believe in the Trinity." "
They believe that our leaders must be chosen by Allah, not elections." "
They let men and women dance together." Abrahamism accentuates the caveman instinct in its followers, and as regular as clockwork, every few generations an entire nation of them rise up in Paleolithic anger and make war on the nation next door because of minute differences in their customs which the rest of us could not even see without a guidebook.
While the rest of us are trying to build a single world civilization, these people highlight our differences and insist that they can't share a planet, much less a country, with those who believe differently.
And this is all over a bunch of fucking goddamned
fairytales???
I hate all religion because it is all bullshit, but I especially hate the monotheistic Abrahamic religions. They are a cancer on this planet.