Wow!!! A.h (can't swear)!!! I would take that as a challenge. I had one stupid "lady" (i use the term loosely because she was totally feral) post on facebook that she was going to set up a chair with popcorn and was taking bets on which jump I was going to fall off at on xc....well I didn't fall off but didn't get far but my response was this "i don't see her out here on a horse trying so what's she afraid of" she didn't turn up and she doesn't compete....if she decided to I could whipe the floor with her on my new horse i'm training...he's going to the top!!!
Here's my advice: whipe the floor with them
They're not out there doing it so how would they know what it takes to event. There is a paint that sold around here for $22000 as a 3 star eventer...he's fantasic! So breed doesn't matter, conformation not so much, colour definitely not!
My older horse has a long back and no one thought he'd be good at dressage, even my nice instructor said he didn't have fantastic movement and then my horse immediatly done an elevated extention trot to die for....he ate his words. My instructor wasn't being nasty and he always had a soft spot for him
Those that are weaker minded try to make others think they are not...but that just makes them weak.