ʿAzīmah denotes the original norm, while rukhsah concerns a concession for a specified excuse. But it is inaccurate to infer that coercion or necessity makes every prohibited act permissible. Some cases retain the original prohibition while excusing certain consequences; in others, the status of the act changes under defined conditions.
Killing an innocent person cannot be generalized as a permissible means of self-preservation, whereas consuming prohibited food to prevent death may be treated differently under conditions of necessity. Removing the qualifications from classical examples creates a false rule.
Correction: Identify the excuse, the type of concession, whether permission or obligation follows, and the effects on the rights of others.