Wean at earliest 4 months to 6 months. IMO
I don't send any horse through an auction.
If I cannot find a home for one, I keep it. I do without so my horses have what is needed. I do not breed horses, there are far to many unwanted starved abused animals that I do not add to the problem.
I don't think Mexico is the answer.
I would not take a horse to slaughter but there is a need, beats starving to death slowly and painfully.
A bullet to the head is better than starving to death.
I don't do guides or pack trips or need a string of dude ranch broke horses.
I would love to have an Amish raised and trained horse.
As stated in my first comment,, it is my opinion. You are entitled to your opinion . There is no need to condemn people for thier opinions. What I find cruel someone else may not.
The last Auction that was in my local area, started refusing lame , crippled, and starved animals. They lost their variance with the county and closed a few years ago. It was a dumping ground. You could find some good horses. The killers were in attendence every auction when it was running.