Recycling and reusing are great, but there are real costs to both. I've got a bunch of CDs that I don't really want anymore. I'm certainly not ever likely to use them, given Spotify and the like. But I feel bad enough about just throwing them away that I've just held on to them. I fantasize about giving them away to someone but realistically that would be such a pain in the ass that I almost certainly will never bother. [Now I'm motivated to throw them away!] Just the cost of someone driving to where I live and, maybe, take them from me – for free – has both non-zero environmental and economic costs!
Throwing things away is fine. Not accounting for all the costs, to everyone, is the real problem.