As long as they are not on active duty, they shouldn’t be targets. And if they are forced to serve, they should still only be killed if they are an active threat. Normally, they should first be offered to surrender.
Hope you’re acting ironic and do not actually call to genocide all Jews in Israel.
Zionists are mostly Jews, but Jews are mostly not Zionists.
But yes, according to Talmud, Israel shouldn’t exist.