What lie are you talking about? That he supports far right parties? That he did some kind of gesture which the video looks like a Nazi salute but he says was just the my heart goes out to you gesture?
Neither seem to be that the OP was lying, but I understand you have a different opinion than they do.
OP said he did a Nazi Salute. He did not do a Nazi salute.
He did something that people who fetishize the downfall of their enemy desperately want to be Nazi salute, so they call it that, but it was not a nazi salute.
If it was he would have said so, since at that point you are basically showing the world you are a nazi. But that is not what happened.
People really don't take their credibility seriously, and will cry wolf at anything that moves, seriously undermining any argument they make.
There are ample ways to hate on Elon using factually true things he has done. Sticking to those makes your arguments rock solid, and keeps your credibility high. So much is wasted by idiots slinging smoke because it makes themselves feel right.
What if he does it again and just says "My heart goes out to you" and does the same hand throwing gesture? Just curious what you think in that hypothetical.
To me it seemed like he did it to troll 'libs' who dislike gestures like that.
There always exists a difference between what a person thinks of their own motive and how it is seen by others. In this case, while he might say he did one thing, many people took it to mean something else.
Neither seem to be that the OP was lying, but I understand you have a different opinion than they do.