This lead ammo is killing everything is analogous to what we saw with the coronavirus in some areas.
Coronavirus bad, coronavirus can cause death, therefore, anything ever having coronavirus died of coronavirus. Doesn't matter if the guy fell 20 stories to his death, if he had tested positive for coronavirus, guess what killed him...
Lead can be bad, guns are bad, guns use lead ammo, lead was found in animals that died, lead ammo is killing all the animals.
Lead ammo is highly processed and pretty dang inert, you have problems with studies that never did the analysis to determine what type of lead, what the source of the lead was, that killed the animal. Was it from naturally occurring lead, was it from bullets, did they actually die from the lead, or just have lead in their system but were still noted in deaths from lead...
Having atomized lead sprayed into your mouth isn't a good idea, it's wildly different than highly processed and stable lead used in ammunition.
I think there was a US Forestry or some study done a few years back, trying to find all these raptors dying from lead ammunition, that didn't find a single case of a death from lead ammunition. I think they found a couple cases of death from lead, but it was analyzed further, like it should have been, and determined not to have been from lead ammunition.
Many studies don't care to do that, or perhaps couldn't because of technology at the time, etc... It becomes an easy, animal had lead in system, therefore lead ammunition needs to be banned, it's killing all these animals.
However, I didn't link the study because I don't have it saved, so this can all be noted as strictly opinion or hearsay if you wish.