Ezekiel 37:16-28 tells of the 2 sticks being bonded together by God. The adopted Gentile kids(Ephraim), will be adopted into Jacob(Israel) A Christian that hates Israel, hates his own family. God has covenanted with Israel to save them forever. The last thing on the calendar of God is to return to earth and save Israel that is surrounded by a 200 million man army bent on their destruction. Psalm 2 speaks of this in detail. Israel is God's anointed people. To become Jewish, confess and believe that Jesus is Lord and you will be adopted. Jesus ascended to heaven telling His followers that He would NOT leave them as orphans, but gave them the Holy Spirit as a seal they would be saved. We are God's elect just as Israel is. God calls us and we respond. Jesus said "My sheep hear MY voice".
It should be very concerning to hear a church or congregation that are antisemitic. We know the world will hate God's people. Even Jesus told us that if we live in the world, we will be persecuted.
The seed line was in jeopardy when Judah married a Canaanite woman and had 3 kids. God killed 2 of them and Judah went into Tamar, a Semite woman, to keep the seed line going. Through Perez came the line of Boaz who married Ruth, a Gentile Bride, who was redeemed by a Kinsman Redeemer. This line went on through David. Moses was saved from Pharaoh's death sentence for all Hebrew males. That Pharaoh who forgot Joseph,( a type of Christ), was an Assyrian, a descendant of Esau. Later when Jesus was born, Herod the Great ordered all male Hebrew babies killed. Herod was a descendant of Esau, or Idumean. Rome was founded by Idumeans. These cursed people will forever be cursed by God unless they confess Jesus as Lord. IMO, the Antichrist will be from the old Assyrian Empire that was swallowed by Rome later and their seed line will be from Esau.
If we return to Genesis 6, we find fallen angels went into the daughters of men and created another being called Nephilim. These "Giants" plotted to take Canaan, the Promised Land, and make it a fortress that Israel could not conquer after 400 years in slavery. Immediately after Gen 6, we find Noah and the Flood. God says Noah was "perfect" in his generations. All other flesh was corrupted. After the Flood, we find the person with the curse was Ham. His son Canaan was the one that was cursed and he settled, Canaan, the said Promised Land. The first Giant to be born after the Flood was Nimrod, a type of the Antichrist. Rabi's say he was a murderer( he hunted men) and he was a cannibal. This "demon seed" spread throughout Canaan and several Giant tribes are mention in Scripture. The sons of Anach, Goliath being one of 5, Amorites,Amos 2:9, Og was king of Bashan, and Rephaim, among others. This is why God told Saul and Joshua to kill everything with breath in certain area's. Saul of course failed to do it and was removed as king and killed.
There are certain statements in Scripture that talk about things lasting for 7 or 10 generations, depending on what the sin is. IMO, I can't prove this by Scripture, that's how long it takes to breed out the bad seed. There are some that will never bring themselves to confess Jesus is Lord. They have reprobate minds. God is love, full of grace and mercy, but this demon seed will NOT be allowed in Heaven. God, in the end will give 21 Judgements in the Last Days and will be looking for repentance after each seal is broken, after each trumpet sounds, and after each vial is emptied. Israel means "struggles with God". Everyone will at some time struggle with God. If we submit to God, we will be an Israelite.