Many fatal fetal anomalies aren't detected until the scan done between 18-23 weeks. So that doesn't "give the mother a lot of time." Especially in states that add legal hoops for her to jump through, and where the nearest place to perform an abortion is several hundred miles away in another state. Usually in those cases she's forced to put the dying fetus through much more trauma, as well as the risk to her own health and life. You can tell yourself they'll make exceptions in those cases but the reality is they won't act until she's crashing from sepsis, because they fear (with good reason) being reported and arrested and losing their license.
Many fatal fetal anomalies aren't detected until the scan done between 18-23 weeks. So that doesn't "give the mother a lot of time." Especially in states that add legal hoops for her to jump through, and where the nearest place to perform an abortion is several hundred miles away in another state. Usually in those cases she's forced to put the dying fetus through much more trauma, as well as the risk to her own health and life. You can tell yourself they'll make exceptions in those cases but the reality is they won't act until she's crashing from sepsis, because they fear (with good reason) being reported and arrested and losing their license.