“Eggs are white because god knew black don’t crack”

The saying “black don’t crack“ means that people wit darker skin wrinkle less with age. It has nothing to do with the color of eggs, but there are jokes.
 
“Eggs are white cause black don’t crack“ was posted on Twitter by Kristina Whitaker on February 23, 2019. “Eggs are white because god knew black don’t crack“ was posted on Reddit—3amjokes on March 1, 2020.
 
   
Wiktionary: black don’t crack 
Phrase
black don’t crack
1. People of African descent tend to wrinkle less with age than people with fairer skin.
 
Twitter 
Kristina Whitaker
@narfwidget
Replying to @joss @jaugustrichards and @whedonesque
Eggs are white cause black don’t crack. Besides, Joss you introduced him to vamps. #Gunnsdontage
5:41 AM · Feb 23, 2019·Twitter for Android
   
Reddit—3amjokes 
Posted by u/tongueinspector Marc 1, 2020
eggs are white because god knew black don’t crack
 
Twitter 
ugh
@shugalmogul
eggs are white because god knew black don’t crack
2:35 PM · Mar 1, 2020·Twitter for iPhone
 
Twitter 
3AM
@3AM_Jokes
eggs are white because god knew black don’t crack… No text found
3:06 PM · Mar 1, 2020·IFTTT