Despite having a very scientific claim, he was accused by the church to be heretic. Coincidently, as He Jiankui, he was also sent to prison...
Now, some of Galileo's ideas in the fields of mathematics and astronomy are accepted around the world.
Who knows, maybe 100 years from now, genetic modification of babies will be as common as the idea of a spheric earth, and the actions of He wont sound so extreme...