Now an embryo may seem like some scientific or laboratory term but in fact the embryo contains the unique information that defines a person. All you add is food and climate control and some time and the embryo becomes you or me.
In religious and in secular affairs the more fervent beliefs attract followers. If you are a moderate in any respect - if you're a moderate on abortion if you're a moderate on gun control or if you're a moderate in your religious faith - it doesn't evolve into a crusade where you're either right or wrong good or bad with us or against us.