Right, you can't actually talk about any real compromise position. All anyone hears are the two extreme options. People who talk about miscarriage, mother's life in danger, and so on are trying to convince you that because those exist all abortion should be legal. Anyone who is against abortion sees right through that. If anyone was serious about the compromise position where those types of things are allowed but otherwise abortion was illegal they might be able to get many against abortion on their side - except that they won't because give an inch and they take a mile is reality and everyone "knows" if you compromise at all they will just be back against next year asking for more.