Why do so called pro lifers get offended when you factually disprove that life does not begin at conception?

Anonymous

https://emmalindsay.medium.com/human-life-does-not-begin-at-conception-6706e11775ca

https://slate.com/human-interest/2017/04/when-does-life-begin-outside-the-christian-right-the-answer-is-over-time.html

https://rewirenewsgroup.com/2012/11/04/life-begins-at-conception-thats-not-point-0/

The science is pretty clear that life might begin at fertilization but even then it might not happen so to say life begins at conception is malicious and deceptive statement to prove a moral high ground.

Why do so called pro lifers get offended when you factually disprove that life does not begin at conception?
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