Correction: Jews believe in "the Messiah," but not necessarily Jesus, Christians and "completed" Jews believe He's coming back in the air (rapture) and after the 7 year reign of the Anti-Christ to set up His 1000 year earthly kingdom.
The Jews are waiting for the Messiah's 1st arrival when He will set up his earthly kingdom, and there are things that need to be done before that happens, as I'm sure you're well aware.
7-year reign of the Anti-Christ hmmmm? Well, we’re on the sixth year of the reign of a regime that is anti-Christ. Who ever said the “anti-Christ” had to be just one guy? Semantics can be fun.