What's the difference between black people and apples? Nothing, they both hang from trees.
Do you hate black people?
Indirectly ofcourse, they are just not as intelligent as us.
Lynching happened to many innocent black people so joking about it can be hurtful. It would make people think about how much people wanted them to die just based on the color of the skin. You would be scared if people just wanted to lynch you because of the color of your skin.