Medical ethics.
They got away with injecting the global population with an unapproved, experimental gene therapy, why would we be surprised they are now experimenting with human embryos.
Oh, btwโฆin Genesis the fallen angels were mating with human females and creating monsterous hybrids which God declared an abomination.
I personally believe they are actually trying to make God angry so he smites the earth.
They can't help themselves. They are hard-wired for rebellion.