I’d be very clear with him. Tell him having your step granddaughter is non negotiable. Tell him he’s behaving like a child and you aren’t prepared to put up with it. Tell him if he doesn’t like the little girl and isn’t prepared to be nice to her then he must leave your house while she’s there so you can enjoy your time with her. Don’t compromise, you don’t owe him anything, so he needs to grow up or leave.
Water Pollution -“ A National Disgrace”? A case for renationalisation?