U.S. lead acid baterries recycling has been outsourced.
" As the United States tightened regulations on lead processing to protect Americans over the past three decades, finding domestic lead became a challenge. So the auto industry looked overseas to supplement its supply. In doing so, car and battery manufacturers pushed the health consequences of lead recycling onto countries where enforcement is lax, testing is rare and workers are desperate for jobs. "
https://www.nytimes.com/2023/03/20/world/americas/car-batter...
https://www.nytimes.com/interactive/2025/11/18/world/africa/...
Yeah, too many lead batteries here, and there are a lot of battery recycle factories. It's been a health and environment concern for a while. And these batteries allowed to put motors on rickshaw, we call them "Tesla", And they are also another hazard, and menace for the price of faster transportation.
Don't get on such a high horse about US regulatory effectiveness.
This is recently (2010) in California even: https://en.wikipedia.org/wiki/Exide_lead_contamination
Still, the overall benefit might be seen as positive for lithium from shifting widespread air pollution from combustion engines to more localized pollution. Though obviously the world needs to work on better processes for the local pollutants.