The OP's post and additional comments show immunity to reason, but one of countless reasons is the $18,500/kg ($10,000/lb) cost to get a payload to orbit, and the estimated 2 trillion kg of trash, so you are already looking at $185,000,000,000,000,000 ($185 Quadrillion), and that is assuming everything goes perfectly according to plan, not even including collecting all the trash and many other variables. Considering that is already thousands of times more money than currently exists in the world, this first reason already makes it by far the worst idea in human history. To be fair though, even if it was completely free it would still be the worst idea in human history.