In case it wasn’t clear, my comment about modesty was an example (and frankly a euphemism). If t was not a good one, so be it. The ester example was to make a famous point. That even yeherag val Yavor stuff maybe has an exception if the entire nation is in jeopardy. Shabbos is a much easier example. After all, you can break Shabbos to save a single life, and frankly, as others have noted, you might even be able to get the violation down to a rabbinic violation.
Anti-semitism is unfortunately increasing in America. On both sides of the aisle. Israel is increasingly at risk. Those two places contain 80 percent of the worlds jews. Whatever you may think of trumps policies, the man is not stable. Nor does he like intervention in the world. Nor is he inclined to help anyone outside our borders. His original comment is that us should be neutral in the Israel Palestinian dispute. Make no mistake that Kashner changed his mind.
And as we saw, he is really obsessed with crowd size and who attended his inauguration. he would not have been happy if kushner and his daughter did not attend. And that as the most powerful man in the world, that would have affected Jewish lives through his Israel policy Is almost a certainty.
I suspect if you wanted, you could find other instances where kushner bends Jewish law. One might argue that simply makes him human. Regardless, this may very well not be one of them.