If I believe I’m telling you the truth, it’s not condescending. It’s a gift.
Trump knows what he’s doing. Stop trying to turn his supporters away from him!
There is no connotation of untruthfulness in condescension. There is instead an assumed air of superiority, such as to believe that in sharing of one’s greater wisdom one is imparting a gift upon another.
You miss the mark is well in presuming that I am “trying to turn” Trump’s supporters away from him. I am instead sharing what I believe to be the truth.