The lead isn't going to leak out of these things. It's essentially inert.
The demand just isn't there. Same with scrap metal. My local scrap metal place doesn't pay anything for scrap steel anymore.
The Iraq war created a lot of demand for scrap steel.
You'd think that lead recycling would be in demand given that the last US lead smelter closed in 2013 but perhaps manufactured products using lead are all made overseas.