I am just looking and generalizing but I would say YES! bring them in... Window sills are good. None are hardy to Z7b. I think pineapple is hardy to 40 degrees some say 9b , that is 25F. so there is a disagreement. I would go with the 40 assessment. If it can't go inside, then put it upclose by the house on the south side and cover on cold nights with an old blanket and/or some bubble wrap. This works for 8b but I am not sure it will work for you. You are 10 degrees colder and colder a lot more often. Inside would be a lot better. One could build a green houes with some pvc poles and some clear plastic. and run some electric heater on the real cold nights. Your plants are very small, I bet there is somewhere inside they can go. Twist your parents arm SWEETLY. Get that soulful pleading look. It is all for a good cause. LOL

Welcome to the world of plants. Wintertime one has to live with them up close and personal. Space is always the issue. Plants get larger (read back breakingly large) and more numerous( read addictive amounts hundreds and hundreds if you don't watch out)

They need to go inside. Cut way back on watering. I don't water some of my succulents at all over the winter.