A factory might have a minimum order quantity of 10000 units for a product. The products cost $1 landed.
You know you can sell 4000 of those products for a total of $15k.
This might become a bad deal if dealing with the 6000 extra units costs you money.
maybe this will force factories to change their process. with manufacturing getting cheaper, smaller batches become affordable. at the extreme we can now print books on demand, and improved 3D printing allows one-off items in many more areas. that's the trend we need to push. to get away from wasteful mass production.
Push how? Through regulation? Unclear how else you’d achieve this if it is still worse economically. Buyers don’t want to pay more either.
through demand at first. clothes designers are hopefully going to demand smaller batches to avoid getting punished for overproducing. but if that doesn't work, then yes, maybe regulation is necessary. tricky though because manufacturing is often outside of the EU.
overproduction needs to be made more uneconomical than smaller batches. if that is really the issue. i really doubt that large batches of production are actually the problem here.
How much longer do you wait to see if demand solves it? It hasn't. The problem has gotten worse