I've had this very same question on my profile page for well over a year, myself. It's a Gordian knot that no left-winger will touch.
This is the same sort of cunundrum that made animanl rights "people" and homos go at each other with signs and fists(combatively)
The issue was medical testing on animals must be stopped but gays said only for the exception of AIDS research.---That's when their love lubricant hit the fan.
....would have loved to see videos.