Regardless of "whom" is eating them...the thought for some us is just disgusting...that is our opinion. I do caution you though that going off of the main issue at hand can result in hours of ugly debate that will get everyone nowhere except upset and take us farther away from the issue at hand.
As I stated earlier in this thread, people of other cultures eat many things that us as Americans find absolutely unacceptable. Bugs, raw & rotten meats, rats, dogs & cats, and in some primitive tribes even human meat is consumed. There is a slippery slope...that I think ethically we should try to prevent ourselves from sliding down. Even though many of us may not like to admit to it...our diets are based upon Religious beliefs. As I stated earlier in India, eating beef would be considered unacceptable & sacrilegious. The US was founded on Christianity, the Bible clearly states we are not to eat any meat unless it has a split hoof AND chews a cud. That is why pigs are not on the menu for people of Jewish decent. Although they have a split hoof they do not chew a cud. This would also take horses off the menu for many sharing this religious belief. BUT as we all know in America we also have the freedom of religion...sooooo it just comes down to what is acceptable by the majority of people in our country. I do think that IF horses were raised like cattle for the purpose of being consumed and were governed by the USDA as cattle are to make sure they are not subjected to chemicals, hormones, and ect...people in America may have decided to eat them. Being that a horse has a gestational period of 11 months and it takes around 2 years to have an almost fully grown animal...waiting three years to "harvest" them they may not be a profitable animal for meat. This debate, whether it is legit to eat a horse could rage on and on and on if you fuel the fire. I personally along with many others would never eat a horse. That is just our opinion...that is our right...and I do hope I never see a time in America that horses do start to be raised for consumption.
BUT to really take our horses off the plates of wealthy Europeans what we need to do is PREVENT the need for these animals to ever go to the slaughterhouse in the first place. Promote responsible ownership by enforcing and lobbying for stronger legal consequences for "irresponsible owners" who are guilty of neglect/abuse. Try to educate back yard breeders about bringing more unwanted horses into this downed market...much like the ad campaigns for the spay & neuter campaigns for dogs and cats have been effective...we need to apply this over to horses...AND go after the largest suppliers of mass amounts of "unwanted" horses as in the racing industry and their unquenchable thirst for 2 and 3 year old runners.
"An ounce of prevention is worth a pound of cure" to REALLY get this under control it is IMPERATIVE and only logical to try to curtail the numbers going.