I tend to agree that not everybody can teach. There's nothing worse than a CFI who can't teach, because he just sits there and milks students.
I FIRMLY agree that Gulfstream "students" are the filth left behind by the scum of the industry. Keep discouraging your students. I met a Gulfstream guy who said he was "furloughed". I wondered if that meant he got his money back. I empathize with folks who are on furlough. The gulfstream guys got what they deserve though.