It gives people a required moral compass (which can include as much evil as desired), it influences our politicians and teachers, it teaches "intelligent" design and contradicts scientific discoveries, it ruins relationships with family and friends, it makes people feel guilty for no reason, and it tricks people out of their money.
Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge.' -Isaac Asimov-