The Israel and Palestine situation is way too complicated to be left to “I support Israel.” Support in what way? Their existence? Their military campaigns? Their government? Their settlements? Everything they’ve ever done ever?
Do you then oppose everything done by people from Palestine? Do you then oppose the existence of Palestine?
In my opinion it’s not okay to leave your opinion as that simple. If that’s all you’ve got your opinion is bad because it’s simplistic, not because it supports a particular side.