I don't know about you, but my circular conversations usually go like this:

Other Person: "I accomplished _________ through hard work/perseverance/deciding I needed to change/etc., therefore, people who can't do what I did are lazy/unmotivated/stupid/etc."

Me: "It's great that you've accomplished _________, but it's not as easy for everyone."

"What?! It wasn't easy at all! Like I said, I had to work hard and etc..."

"I'm sure you have worked very hard, but it's still far more difficult for some people to achieve what you have..."

"Because they aren't working hard enough!"

"....."

Just do what I did and everything will turn out all right. No, no it won't, because I am not you and that person over there is not you and so on. How do people get this way? I just don't understand. It's like there's this serious empathy deficit in society today and no one can be bothered to care. If I wasn't depressed, living in this world would make me that way