What is the bad sources of protein?

Bad sources of proteins are foods such as Fried Chicken, Fast food type proteins (McDonald Hamburgers), and Deli proteins. The difference between good proteins and bad proteins are good proteins come with other good nutrient sources while as bad proteins are going to come with carcinogens and high saturated fats which make these food sources not good to consume. Ex. Fried Chicken is going to be a ton worse then a good source of protein such as grilled chicken why this is? Grilled chicken is going to come with much better nutrients than fried chicken.