"Why I Stand Up to Politically Incorrect Jokes"

"When we can see the humanity behind the people who these jokes target, and when we understand the implications of the privileged laughing at the marginalized, we lose our ability to laugh at their expense.

We lose the ability to laugh at jokes that make sweeping generalizations about groups of people.

We lose the ability to laugh at jokes that mock and ridicule people who already experience countless oppressions in their lives.

And that’s a good thing"
http://everydayfeminism.com/2013/04/why-i-stand-up-to-politically-incorrect-jokes/

This thing about laziness is so in line with my perception - I vent my irritation by keeping a list of lazy jokes and secretly laughing at people who use them. But lazy speech in general is full of statements with implications the speaker probably wouldn't want to state directly but which they are implicitly supporting, and why it can be so exhausting to chat with people who don't know me well or who aren't really trying - those conversations are a minefield.