RV manufacturers, I am calling you out

I hope you feel better but I'm afraid that's all you will get out of your message to the builders. Nothing you say here will have any impact on how manufacturers run their business. You're playing to too small an audience that doesn't have the power to do anything even if you are right. Your voice as a consumer is only heard a short time by a small number of people that can't produce any meaningful change in anything. Venting helps sometimes but often just makes you feel even worse when nothing good comes from your rant. It's a tough spot to be in. You feel helpless (and probably are) and lashing out at a place like this just doesn't help much. You probably would get farther by calling and writing the manufacturer every week until someone gets sick of you enough to do something just to make you go away. Either that or hire an attorney and be willing to spend a bunch of money to get what you think you have coming.