It doesn't prevent the sale of X - it incentivizes vendors from producing X + X^1 + X^2 + X^3 + X^4 etc with the additional production going to pure waste.

Look at the nature of production to meet demand before and after fast fashion .. there's been a sea change to not simply meet demand or provide a little additional choice but to over produce as a means of changing consumer behaviour to milk out every cent with a by product of magnitudes more landfill than has previously existed.