Well, you sort of are attacking people by insinuating through your campaign that anyone who keeps their horse stalled for large periods of time or uses a bit needs their horse rescued.
Some places don't have space to turn out. High density, high population area. Correct me if I'm wrong, but I believe in the UK it's common to have horses stable for a season, then move to another property to be spelled. I've known some horses who straight up preferred their stalls. I don't keep my horses like this, but there are you worse things out there providing they get have had years to socialize growing up, regular exercise, an open stable design, and are maintained in good health.
Bits do not cause pain by default. If anyone who uses a bit for more than 10 years is a bad trainer... Then you've just insulted a lot of famous, well respected professionals of many disciplines, plus many of us here.
I've personally had to rescue a horse from a pasture home where they rode with halters.