What are you talking about here? The religious right has always held life begins at conception. They have been chipping away at Roe since it’s passing. Roe has always had limits, both in the law and with each individual woman, provider, and family system.
The fact is, Abortions at or after 21 weeks are uncommon, and represent 1% of all abortions in the US. So, your attempt to define a moderate middle ground is flawed, the extreme late-term intervention is already rare. It is not done thoughtlessly, and it is none of our business.