Chicken is one of the most powerful obesogens in your diet. The chicken that you are eating has almost nothing in common nutritionally with the ones grown in 1961.
Meat is not healthy for anyone and chicken is one of the most concerning meats available for its health consequences. The more meat a human eats in their lifetime, the younger they die and the more major diseases they experience. The top killers of humans this year are all directly caused by or closely related to meat consumption.
"Protein" is not a meaningful nutritional category for the average person. If you are getting enough calories from whole plants, you are automatically getting enough protein. Protein does not have to be supplemented.
It's also relevant to this discussion that chickens are the most abused animal on the planet. There are almost 27 billion chickens living in atrocity right now. The experiences of animals are real and matter.