Everything is implicitly subsidized because every action that any living being takes affects some other living being and the ecosystem as a whole, because we all live on the same planet. It's a meaningless statement.
Sure, we can assign those costs to builders, why not? There's already lots of discussion about the true cost of EV batteries and how they're subsidized.
> Everything is implicitly subsidized because every action that any living being takes affects some other living being and the ecosystem as a whole, because we all live on the same planet.
Actions don't all have the same effect so I think it's totally fair to consider their true costs.
I think where it gets a little tricky is how you decide to assign costs to people that have children or are children. But that's really getting in the weeds.
No, we generally pay for pollution. If I litter I pay. If I have to throw stuff away I pay (via taxes). If I have to dump dangerous chemicals I pay.
Oil industry can dump whatever they want into the air and they don't pay. You, and I, pay. We don't actually know how profitable oil is because of this.