1. It's an issue today because it seems like the progressive liberal left likes to highlight topics that illicit maximum outrage to the lowest common denominator?
2. It exists because a fringe lunatic created it.
There's really not anti semitism or Naziism problem in this country, outside of a couple of crazy groups with less than 100 people.
We support the heck out of Israel and as long as the United States stands as it is, we will prioritize Israel as our number one most important ally
And that's because of traditional, conservative values, like that Israel is God's chosen people.
Beyond that, any theories you have about anti semitism, I can't help you with.