Please explain this a bit further - I would have thought that because Judaism is anti-Christ any temple initiative would be as well.
Judaism is not anti-
Christ.. Christ is the Greek word for the Hebrew word Messiah. They believe in the Messiah to come who is what we Christians know as Jesus Christ. Jesus in Hebrew is Yeshua. So he's the one who saves the Jews from their sins as Jesus' foster-father Joseph was told.
A few years ago there was an elderly Jewish rabbi who wrote a letter and telling his congregation to open it some days after he died. In the letter he said in secret code that they had to solve, that the Messiah is Yeshua of the New Testament. There was an uproar in the Jewish community of course. Many denied the letter said it, but the truth did get out.
They are at this time anti-Jesus. They are anti-Christian belief but not hostile to Christians who don't try to proselytise them or make judgements against them.
There were in the days of Jesus ministry a number of high ranking Jews who accepted that Jesus was the Messiah if you recall the gospels. So they had heard the true Jewish teachings to be willing to accept him when he came.
But at that time there was also the Pharisees who had great control over what the Jewish leaders were to believe. All of that resulted in Jesus being crucified. But on the day of Pentecost Peter preached to them and many Jews received Jesus as their Messiah. For some years at the beginning of the 1st Century most believers were Jewish with a few Gentiles until God called the apostle Paul to preach to them. And here we all are now.
The traditions of the Pharisees have forbidden them to read what would set them free from that Pharisee bondage and it's false Messiah requirements that keep them from accepting Jesus as their Messiah.
Back in Joseph's day when his stepbrothers came to get food during the famine. Joseph went by an Egyptian name and he dressed and talked as one so they were blind to his true identity. Just like the Jews are blind to Jesus' identity as the Christ. Their true Messiah.
The entire event is very touching as Joseph wept over their blindness to him, so before he revealed himself to them he tested his stepbrothers to see what they thought about Benjamin, Joseph's full brother. He was an older brother concerned what they might do to him if they had thought against him as they did Joseph.
Of course, eventually Joseph revealed himself to them and so they all wept together to be reunited. He saying to them, what you meant for evil God turned it for good.. because without what they did, they would not have a way to survive the famine because God blessed Joseph even in his troubles so that the Pharaoh had put him in a high ranking position where he could strategize a way to overcome the famine for Joseph's family and for all people in Egypt and throughout the region.
For as long as they are blinded to Jesus being their true Messiah, they have a great desire to reconnect with God since AD 70.. the only way that God told them to connect with Him. That is by animal sacrifices.
We Christians are taught through the New Testament that Jesus is the way, the truth and the life. But their blindness won't let them see it. They've refashioned all of the furniture needed to put in a rebuilt temple, and they've got all of the priests taught and ready to perform all duties within the temple. They believe that it's God's will, and so they wait for the right timing to put everything in place.
That time will come when the pre-ac makes a peace covenant with them then they'll waste no time but set things up speedily so they can seriously with all respect to God finally reconnect with him again, like a prodigal son returned back to the father.
God allows the Old Testament ways to be restored during the 7 year Tribulation. So that he can help and protect his covenant people through that very hard time. When the pre-ac becomes the AC and persues them to attempt to wipe them out. They run to the wilderness and remain safe during the worst time that earth will ever know. While that portion are in the wilderness, there will be 144,000 Jews who receive Jesus as their Messiah, they get sealed just as Gentile Christians do during this age of Grace.
And there will be the two anointed Witnesses. Plus Gentile Christians who get saved after the rapture of the BOC.
The gospel shall be preached in all the world, and all Israel shall be saved, then shall the end come.
I hope that something in this post helped to answer some of your questions.