Not really. If I was in an argument with a UFO theorist where I said the US government wasn't actually hiding live aliens, and someone came along and pointed out that we have illegal aliens in custody, I would point out that this is true and irrelevant.

The word toxin is widely used in "wellness" circles, but the concept so described does not exist. The fact that there is a correct, jargon-specific, scientific usage of the same term notwithstanding.