For a supposedly anti-Semitic party, it is surprising that year after year, decade after decade, Jewish voters are among the most reliably loyal Democratic voters.
The downside of a two-party system; no matter how fucked up both are, most voters will pick one or the other. For Jews and African-Americans it's the Democratic Party because the Republicans offer less consistent support....or they could vote Third Party locally, but I doubt a Jewish or African-American third party would make more progress than any other Third Party.
Which brings up a major point:
Numbers*. Percentage of the population. Jews make up 2.7M of the
Adult** US population, Muslims 1.4M, Christian 173.4 out of a 228.2M American Adults.
https://www2.census.gov/library/publications/2011/compendia/statab/131ed/tables/12s0075.xls
Given that a "blended nation" is making racial differences less clear, the US Census still subdivides Americans by race. As such, Whites number 244.3M, Blacks 39.6M, Asians 14.0M.
https://www2.census.gov/library/publications/2011/compendia/statab/131ed/tables/12s0010.xls
Voter turnout is an important factor to consider the impact of a population on our system of government:
https://www.census.gov/library/stories/2021/04/record-high-turnout-in-2020-general-election.html
Graphics:
With all this data, when discussing the OP, the question "So what?" comes to mind. Sure, as the link and graphic below display, Jews can affect local elections such as city and state, but that's mostly a situation where Christians are evenly divided and a small percentage can tip the election.
Consider Arizona and Pennsylvania where the Adult Jewish population is 113,000 and 275,00 respectively. Total adult population of those states is 3,763,685 and 9,358,833 respectively. Meaning Jews are 3% and 2.9% of the voting population per state, respectively. 3% only becomes significant if the Christian voting population is split by less than 3% or any combination where 3% can tip the election. Otherwise, it's just interesting numbers.
https://www.brandeis.edu/now/2020/october/elections-jewish-vote-steinhardt.html
https://www.infoplease.com/us/census/arizona/demographic-statistics
https://www.infoplease.com/us/census/pennsylvania/demographic-statistics
All that said, while I fully support the rights of Americans as individuals to the rights and benefits shared by all Americans, it's a puzzle to me why the focus is upon such small portions of the American population versus the larger portions.
Consider that adult black voters constitute only 16% of adult white voters (13% of all adult voters), yet the focus is on Juneteenth, the second of two Federal holidays dedicated to African-Americans. Columbus Day can be seen as a "White Holiday" and I'd rather make St. Patty's day or Cinco de Mayo a holiday in its place.
I'm not saying Americans shouldn't care, I'm saying Americans should focus on doing something that actually makes a difference such as ensuring a quality education for all Americans since the poor areas of America, disproportionately minority areas, is what really needs work. Recognition by Holiday is nice, but what does it do except give Federal workers another paid day off?
* please feel free to check my math because I've been known to screw up both before and after my morning coffee.
**Adult can be interpreted as "voting age" but not necessarily voters.