To have a constructive discussion you must have mutual respect, and I lost any respect to you when you showed you had none to me.
I can't address your feelings since that's something you're generating internally. What is clear to me is you're not willing (or more likely in my opinion, able) to provide any data or evidence for your claim.
It is unfortunate that you continue to persist in not providing data but instead redirecting the energy of the conversation into allegations of condescenion which I can't defend. All I said was. I'm sorry you feel that way, however challenging your incredible claims and asking that you provide some evidence before we believe you is not the same "be so toxic with me".