The politically recognized Jesus, that is to say, the one organized religion would promote, will be exactly the opposite of what Jesus was about.

The situation would be the same as the first time around, he'd show up, try to teach his way, and the "temple officials" would deny him and eventually have him killed, because his way won't match what the religions have been teaching, see?

And that's why he'd need to come back. To show people the right way once again, as everyone is caught by the trap of that political distortion of religion!