If the fallen angels were breeding with humans and creating nephilim, it makes perfect sense that God gave us his own perfect Son through a human. He made a mockery of satanic misuse of humanity by using a human to send the Savior.
The enemy was trying to corrupt man’s DNA to prevent the birth of the messiah. It says about Noah that he was perfect in his generation. That does not mean he was without sin but his DNA was fully human. And what is the enemy doing today? He knows that the messiah will only come when a remnant of Israel calls on his name and say blessed is He that comes in the name of the Lord. The messiah will come to a people and locality, mainly the mount of Olive next to Jerusalem. The enemy is trying to kill off the people that will call on him and remove them from their land to stop this event which will happen at the end of the seven years of tribulation.
Everything that is happening in this world today is working towards or against this seven year tribulation event described in Revelation. What’s forcing the nations currently in the EU to become so authoritarian. It’s like they can’t help themselves.