Hypocrisy.
What makes a human being an insufferable waste? A person who is quick to glorify or condemn something, while turning around and neglecting to treat something they favor or hate with the same one-track mindset.
This has been a common trait in some of the worst people that have ever lived, along with people you'll surely encounter in day-to-day life. They aren't worth talking to, paying attention to, or consorting with...but Jesus Christ if they don't turn up frequently like omnipresent weeds.