So let me see if I get this right max, you want help to stop going to Israel yet see no problem with the U.S. giving financial support to Palestine which in turn supports Hamas?
As to the basic idea of giving some level of backing (verbal, not financial) towards Israel, there is the fact that Israel is being barraged constantly from just about all sides in their region of the planet.
Now, it could be argued that Israel needs to learn to get along with the other nations. Then again the same could be argued for the others to attempt at getting on better with Israel. Palestinians funneling their financial support to Hamas, does not exactly say they are making such an effort.
So, is Obama a coward or an equal opportunity financial aid giver? You decide. Personally, I am not viewing him as cowardly, just his usual unable to make grown-up decisions on world policy (take a hard look at the Ukrainian/Russian mess he's been prolonging with hollow statements to Putin).