> Even worse, he's using old school stick welding.
Can you show an example of that? (You linked to him using a needle gun not a stick welder)
He's got top of the range spooled feed welders and does jobs at a scale that take hundreds of metres of feed .. these are not the jobs you spend all day swapping sticks for.
If you watched more of the channel you might pick up a lot of discussion about what is and isn't toxic, what are safe and unsafe practices.
The same job | video you linked, different time: https://www.youtube.com/watch?v=NZf-fTK7q7E&t=592s
That's gouging out metal wearing a closed system breather as that's actual toxic residue.
Welding a nut on to help separate the metal sleeve - not a stick welder: https://youtu.be/NZf-fTK7q7E?t=438
> All your video did was reinforce that, ...
It honestly seems as if you saw what you wanted to see without paying attention to detail about what was actually happening.