Earlier quoted context omitted.
I think this is a stretch. Binary triggers are tricky to use, and aren't nearly automatic. They're slightly more automatic than semi-automatic, but much, much less usable. In terms of illegal weapons, yes. There are illegal fully automatic weapons in the US without taking your example into account. I'm talking about what's legal.
This sub-thread started on the Vegas massacre, where the shooter used a bump stock. It was legal at the time and pretty damn close to automatic.
Back to my original point, it's still wrong to say this will happen while we have automatic weapons. Why perpetuate a lie?