In 1970, I read a paper that 'proved' that we would run out of lead by 1982. I cut out the article to remind me to fact check it when the time rolled around. And dang if we STILL haven't run out of lead. or peak oil. or a hundred other things that went full chicken little.
Commodities are subject to Capitalism (til gov gets involved in stealing from all parties, of course) and thus will never run out. Youll only have to pay more and more as the supply declines. Eventually some bright bulb will figure out a way to recycle it or find a cheaper substitute. Or an entire new tech will come along and obsolete the entire thing anyway.
Don't sweat it.