It’s currently a question about power, not right or wrong. We know that early on, a fertilized ovum is a clump of cell that are alive but have no functioning brains or hearts (much like the majority on the SCOTUS) and are not people. Essentially, the SCOTUS and mostly religious zealots want to take personhood away from women—and these people are clearly women-haters—and transfer their human rights to those cell clumps.