This genetic contamination was also a reason God told his men to kill every woman, man, and child. Even to killing the horses and dogs. As the Jews were enslaved in Egypt, Canaan had over 400 years to plant giants in God's promised land for the freed Jews to have to overcome. David picked up 5 rocks when he killed Goliath because Goliath had 4 brothers. All would have to die in the end.( 2 Sam 21:22)
Some have speculated that these Chimera's are still around today with DNA markers making them unsavable for heaven. We are told to not take marks in Lev 19, and could it possibly be that Satan marked his and God marks His with the Holy Spirit with clean DNA. Possibly these markers would breed out over 7 generations( sins of the father) but then the marker appears again down the line that generate ungodly people. IMO, in the last days, the Antichrist will require you to mark yourself with his name to mark you as his. Satan is a counterfeiter and hates God's mark on His people. Just theory of course, but we know that genetics is important to the "seed" prophesy.
Well said.
(Disclaimer - I believe Christ’s birth resulted from a genetic algorithm The Almighty “timed” at the point when He took “the curve” from The Man (Adam), created Eve, and then joined his “curve” with her “curve”)