I dont even deny that, but even following your arguement, walls would have been build even before we where called humans. Our ancestors already build housing with sticks as walls etc. So if you want to get by this definition, walls are still older.
How do people argue about such basic things, just because Trump said it? None of you would have ever said the wheel is older than WALLS, if Trump didnt say it. I dont even think you actually know the freaking definition of a wheel. "spherical stones to move slabs of rock that carried animals we killed" Thats not even a wheel. A wheel needs a whole and axle. We dont talk about round object humans used to move stuff, even the freaking dung beetles make the shit they gathe round to roll it. But that NOT a wheel.