Well, considering that never actually happened...
He made the "my heart goes out to you" motion (thump your hand over your heart, then fling it out towards the audience), people took a static image of the last part of it, and left out the context to create outrage bait for clicks.
Ah that makes sense. I didn’t realize Sieg Heil was German for “my heart goes out to you”
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Someone disagreeing with you on the interpretation of that event does not make him a Nazi. You need to take many steps back from the polarized thinking you are engaging in, because it ultimately harms you to lash out at people in this way.