It means you support a two-state solution. There is no two-state solution without it.By stating that you support a 'Jewish' state, is that meaning you support a racist state, one based on preference for one people?
It sounds like you acknowledge that the Palestinians won't endorse the co-existence of a Jewish state. Thus, they must accept full responsibility for the fact they don't have their own sovereign state.
It's in the Palestinians' own best interests to get past their Jew hatred.