Speaking as an American, it is true that the US public is woefully ignorant of much of the other violence that has been committed in the region, much of it directly by the USA and its 'allies'. The death in Syria of innocent civilians at the hands of the Assad regime is one example. I think a fundamental reason though, why Israel is different, and why Israel and its actions are suddenly at the forefront of Americans' minds when other atrocities weren't is that unlike Assad, an immense amount of US taxpayer's money goes to directly fund Israel and its military. I can only speak as an American but for myself, the fact that this conflict and the death that Israel is now raining down on Gaza is getting so much attention has less to do with the religion of the pilots dropping the bombs, and more to do with who's buying them - US taxpayers like me. We didn't buy Assad's bombs. When you start spending American tax money on things they don't want their money spent on, they start to pay attention. I think this is a much bigger reason why Americans are paying more attention to this than other Muslim vs. Muslim conflicts where their tax money or US-provided weaponry wasn't really involved. There's a guilt factor associated with this too that was absent in other conflicts: Those are largely US-made bombs, dropped from US-built aircraft flattening civilian and residential infrastructure, paid for with US tax money and built in the US by US workers. I think Americans are realizing their political and financial ties to Israel and starting to question if its a good way to spend money that could be put to a lot of good uses to fix problems in their own country. I think that more than 'antisemitism' is fueling the criticism, along with the incredibly disproportionate death ratio of over 30:1.