This question seems odd. Of course American Jews, like all Jews, care about E”Y. It is Hashem’s holy land, and we daven at least three times each day that Hashem send Mashiach and return us all there BB”A.
But none of the discussion here has anything to do with Eretz Yisrael.
If the question was do we care about our brethren in E”Y, then the answer to that is, of course we do, just like we care about our brethren in France, China or anywhere else.
If the question is “Do American Jews care about [international relationships with] the Zionist State of Israel?” then that is an entirely different question.
The answer to that the question is:
1. The question is really irrelevant because this country has a strategic interest that Israel maintain its QME, or Qualitative Military Edge. It has nothing to do with Jews, antisemitism, and the like but rather plain strategic interest. So our elections are largely irrelevant to the State of Israel.
2. We (those who do not worship at the idolatrous altar of Zionism) recognize that Zionism and its State have always been an enormous liability and cause of suffering to the Jewish people. So, we have zero interest in the Zionist regime (the State of Israel) that has invaded large portions of E”Y over a century ago and that has shmaded our brethren there and world-wide. We care only about our brethren (Jews) world-wide.