Zionism is not about religion so much and more political agenda (dont have to be a believer to a zionist, can be an ethnic jew who is a satanist, and still be a zionist), even if it has its core foundations on the religion of the people and their history, and relates solely to them (God's chosen people is one of the more ludicrous ideas in human history).
Neither is the idea about just having a jewish free state. Its WAY more extremist then that. Oughta be frigging obvious by now.