The guy in the video disagrees with you. From his other video, 23 mins in,

> next, rinse aids. use them. this isn't a scam.

I'll trust the dishwasher expert until there's some proper citations.

You have to realize that every time you sip a glass or eat off a surface that's provided by a commercial entity, you're getting items that have come in contact with industrial appliances that dispense rinse aid.

I have a difficult time believing that something so ubiquitous is as harmful as you claim, but I'm open to being convinced.

"This isn't a scam" means that rinse aid works. It doesn't imply anything regarding its safety.

There is some research (see my other comment) hinting that industrial level use can be harmful (households dilution levels are probably fine).

I think this is the research that suggests possible damage - https://pubmed.ncbi.nlm.nih.gov/36464527/