The reason bacon is bad for you is because bacon is high in fat content, saturated fat and bacon is also high in cholesterol as well.
Eating foods that are rich in saturated fats can raise your cholesterol levels, increasing your risk of heart disease and stroke.
Too much bacon can increase your risk of clogged arteries, blood clots, heart disease, strokes, heart attacks and early death.
Bacon can also be fattening as well.
It's okay to eat a little bacon in moderation but you should not eat bacon every morning for breakfast although it's very delicious.
it's very tempting to also dip bread, biscuits etc in bacon grease after cooking the bacon as it's delicious however as long as you don't consume bacon or bacon grease everyday then your health should be fine.
Just make sure to eat other healthy foods and stay active and you should be fine.
I eat bacon at least 3 times per week along with eggs and biscuits and sausages and I'm still healthy but I also eat other healthy foods.
But if you suffer from heart disease, high cholesterol etc then avoid eating too much bacon or sausages or other high cholesterol foods or other foods high in saturated fats.