Islam is a cult centered around Obsessive Compulsive Disorder.
Do not try to find reason within their dislike of dogs.
Do not try to find reason in their cleansing ritual in the bathroom which must be restarted if you pass gas while washing your feet or saying your prayers.
“for ye are like unto whited sepulchres, which indeed appear beautiful outward, but are within full of dead men’s bones, and of all uncleanness.”
That ‘ritual cleanliness OCD’ is just a symptom of knowing that inside, you are infinitely filthy.
They are antichrists.