The unbeliever or Kafir is only one step above (or below, depending on point of view) a pig, but is less unclean than urine. This is the reason that is given that non-believers can not enter the "holy" city, Mekka, Saudi Arabia. Explained in the tafsir linked above.
Direct from the Grand..."
https://kpr37.newsvine.com/_news/2017/04/27/37387763-the-k-word-kafirits-a-real-killer
Jesus Saves