You cannot compare football helmets to motorcycle helmets to bike hlemets to equestrian helmets. There are reasons why there are many different standards. Think about what happens when you want the helmet to protect your head. If you are a football player you bang into other people and/or the ground at relativley low speed. Maybe professional football players have decided to accommodate hairstyles in their custom helmets even it it alters the level of risk.
When you are on your horse, you can wear no hat, a cowboy hat, a football helmet, whatever you want - unless you are somewhere that requires an ASTM/SEI certified equestrian helmet.
Does your hair offer any degree of protection to your skull and brain? If it did we woulndn’t be having this whatever-it-should-be-called. The point of helmets is that they absorb energy from whatever is going to hit your head. A football player, a horse hoof, the highway when somebody runs you down on your motorcycle. Maine doesn’t require motorcycle helments. Dumb guys (mostly) go by bareheaded all the time. Sometimes the girl behind him has hers on.
Pony Club started the helmet requirement years ago and injuries decreased. It was Courtney King-Dye’s injury that spurred changes that meant that if you wanted to compete in the FEI dressage arena you had to style your hair for a helmet because top hats were gone. Her horse tripped when they walked out of the barn. They fell and her head hit the ground… She was in a coma for weeks and spent years in recovery so she could get on a horse.
Maybe I shouldn’t say this but we are talking about science: physics, chemistty, and medicine to start with. What forces are at work, like gravity, acceleration, impact? What materials will protect your head, perhaps leather, plastics for shells, foam liners? What types of injuries are we protecting against - TBIs?
If you are a human being, your brain and skull are what they are regardless of race, ethnicity, gender, sexual orientation, or political inclinations. We are equal. If the science says protective helmets must be close to the skull and stable to protect you, that’s the science. Maybe I shouldn’t say this one either, but if you watch MSNBC you might have noticed that Joy Reid changed her hairstyle several months ago. Looks great, I love it, and I have no idea if there is a horse in her life.
There is plenty of racism these days and it seems to be getting worse when it was getting better. If you believe that the equestrian helmet manufacturers made a decision to make helmets for white people, I think you are misguided. That is your right, of course. Finger-pointing is not a constructive solution to disagreements between two or more different groups. Sometimes we have to make choices when we would rather not. That doesn’t mean it is racist or sexist or anti-LGBTQ+ but it may betray lack of respect or ignorance.