the true Jerusalem is above and it is free. it is where Jesus Christ rules and we who are in Him are seated with Him in heavenly places.
in a sense the Church at the end does come under the wrath of God apostasy losing its first love.
God is not concerned about a city in the middle east called Jerusalem, once the temple veil was torn, it was a sign that Jesus Christ Himself is the temple, we who are in Christ are part of that holy temple as Paul explains in Ephesians 2:11-22.
Hoo boy!