I will try to give an answer to your actual question. Zionism generally is the movement for the Jewish people to establish a homeland as a nation-state in what is now Israel, but was historically Palestine.
Many Zionists are secular, some are religious. To complicate the matter, both secular and religious Zionists count among them members who believe that the Jewish state should occupy the current borders and the occupied territories (ie. they support settlements in the West Bank and Gaza), while others believe in a two-state solution (they do not.)
Also, the ramping up of settlements has increased since around and after the Oslo Peace Process in the mid-nineties. And while some very religious people has taken this up as their cause, that wasn’t always the case, and this issue should be understood as a political cause, even if it seems like a religious issue at times.