Some walls are bad but some walls are good. The concept of a family is a wall between your family and other families. Good walls are priorities and focuses and not an isolation or exclusion of other people or things or places, etc. A wall is a focus on something you may love or like. And you can define yourself specifically. Yes, there are a lot of bad walls out there in life, and I agree that we should always tear down bad walls. But we should also consider which walls are good or bad and why. Society does better with those kinds of discussions. Walls serve great purposes. Our skin is a body wall which helps us for example. Sometimes, we may need walls where we are, physically, emotionally, etc, and we can be defined by the good walls maybe to some extent sometimes if we want to and that can be better in some cases.