We cut and kill flowers because they're pretty.
We cut and kill ourselves because we are not.
Pretty Flowers
Explanation
Explain Bear
Listen up, buttercup. This joke is dark. It's saying we destroy beautiful flowers because they are pretty. Then it compares that to people hurting themselves because they don't feel pretty. Basically, it says that sometimes people think they're as disposable as a flower. Which is dumb, cause flowers don't write jokes, and you do...sort of.