Why can't people admit: same as dog or animal is "alive" from fertilization, same human fetus?

without bias, nobody doubts a dog is a dog and is alive from fertilization and even a lesson book taught this fact.

meanwhile people , who inside know the truth, refuse to admit truth. why?

Why cant people admit: same as dog or animal is alive from fertilization, same human fetus?

why not admit, "male have y chromosomes so all y are true male, from the start of life at fertilization" why can't they admit the facts?

especially those who RELISH saying "humans are animals," just to offend Christians, but make an exception for fetus humans not animals?

Why can't people admit: same as dog or animal is "alive" from fertilization, same human fetus?
Post Opinion