"Toxic" is one of those terms like "problematic" that rely on in-group knowledge to understand. I've often heard it in reference to masculinity; often used by feminists who have a more concrete definition in mind. And, sure you can look at any violent crime stats to see masculinity has its problems, but instead of the more reasonable claim they're making a very nasty one that's indefensible.
Allusions to people being poisonous are particularly destructive. This was very common in the military, if a soldier didn't fit in, he was labeled as something similar to toxic so that others knew not to associate with him. Even then, when the military does it, there's a practical solution: the soldiers get out of the military.
If you claim a larger group is toxic, you have to ask: these are our neighbors, what do we do with them?
> But decisions regarding such deals are made by a small handful of people at the top
Yeah, that really blew the article for me. Something like not-invented-here syndrome is a cultural issue, not bad corporate strategy.