Yep, and it is only going to get harder to find lead WWs. Since CA started banning them, the rest of the world thinks they need to as well. The percentage of Fe and Zn will continue to go up until it will be an extremely rare thing to find any lead ones.
On a positive note about your haul, the lead stick-on weights are generally considered very close to pure lead. Mix them 50/50 with the clip-ons and you will have a good alloy for most handgun applications. If you are shooting hollow points, go maybe up to as high as 75% stick-ons to 25% clip-ons.
As GP100man said, treat your sources right and they will treat you right as long as they are able to.