Mega-donors on both sides of the aisle, from Haim Saban to Sheldon Adelson, openly talk about their support for Israel and their policy objectives pertaining to Israel in conjunction with their donations. This is done out in the open, and should be pointed out and discussed openly without accusations of anti-Semitism.
Whenever there is a mass shooting in this country and members of Congress tweet their "thoughts and prayers" you have a wave of journalists who will point out how much each of those congress members receive in donations from the NRA. This is no different. We need to be able to discuss the role of money in politics without being accused of anti-Semitism.
Also - isn't it in fact accepting of anti-Semitism to point out that white Evangelicals support Israel because of their religious beliefs? You're basically saying "no those people don't support Israel because of lobbying dollars - they support Israel because they believe Jesus is going to return and force the Jews to convert to Christianity or be wiped out and sent to hell."
If you want to point out anti-Semitism, look at the Evangelicals, not those who simply want freedom and equality for the Palestinian people.