That hasn't been the case for ages
Thanks to shrill environmentalists. It still took a decade after the ozone threat was identified to defeat the chemical lobby, and probably only happened because DuPont was already sitting on patents to alternate technology.
You're ignoring the fact that because polystyrene degrades so slowly, it is one of the worst litters and is a large component of the ocean garbage patches.
I'd happily live on top of a former Styrofoam dump.
I'm sure. Prices are so cheap, you're crazy if you're not already living on a dump.