The free-market doctrine does not rest on an assumption that consumers make wise choices. Like the mythical “economic man,” the Perfectly Wise Individual is a straw man created by the critics of the theory.
Unlike the Versailles peace, which failed horribly, the successful episodes of peacemaking — Westphalia, Vienna, and even the process that ended World War II — had in common extended multi-lateral negotiations and compromise.
The Canadian government wants to force doctors to assist patients with euthanasia. But doctors should be free to refuse service to anyone, and refusal doesn't mean doctors are "blocking access" to healthcare or anything else.