I have no issues shooting them. I subscribe to the "live and let live" way of life until they start chewing on my house.I don't have any cedar siding to chew on, but they've done damage elsewhere before. I like having them around, but when they start tearing up stuff, squirrel stew time. If you don't want to shoot them, try feeding them away from the house and of course keep cat/dog food put away to keep them off the porch.
Our yard is heavily wooded so we have always had a fairly large squirrel population but this is the first time that they have used the house as a daily snack. They only chew on the one corner in the photo.My motto is "Don't want them to overpopulate." And it applies to deer, cattle, squirrels, beers, etc.