Nobody eats fertilized eggs. The eggs we buy in cartons from the grocery store are unfertilized. The hen factory those eggs originate trom has no males anywhere near the ladies.

It is the rooster's job to fertilize the egg by inserting its sperm into the hen's cloaca during mating. In reality, the process of fertilization is more complex than this brief summary suggests. The journey of the rooster's sperm within the hen is rather arduous until it finally reaches the eggs and fertilizes them.