It’s so rude to say that you think the OP is bullshitting us. I can 100% see riders and a BO/BM acting like this, and I have seen it. It’s bloody foolish.
We had a neighborhood request that we clean up after our horses, even if it was in the road, and you know what? We did. BO even supplied the tools to do so as well as a bin. Everyone was fine with this arrangement. Yes, it was in the country and even if it were in the road people could deal, but why make waves about it? I’d rather keep horse/rider and neighbor relations good.
It’s also not your right to ride on someone’s property to stay out of the road. If you do have to do so, be respectful about it. I’m sorry that the OP is dealing with such people that only add to stereotypes such as horse people being spoiled, entitled, antisocial, weird, and/or crazy.
Most of the time if it’s in the road, people will grumble and get over it, but if it is in or directly at the end of someone’s driveway or on their lawn, it’s just common courtesy to remove it.
I really can’t fault the OP in this situation based off of what the OP has reported.