We really need to reference specific scripture here. In general, though, Israel and believing Gentiles have been united through Christ into a new entity, the church.
Whoa! No way. Israel still has seven years to go on the time God made a covenant with them for. That will be the seven years of the Tribulation.
It’s well past my bed time and I am getting dreary eyed so I will not go in depth here but would suggest you do more study on the seven years left.