They are not jumping the queue as there are separate queues.

The IRPA separates out immigrants (temporary and permanent) from refugees with different processes and criteria.

Some temporary immigrants must first apply abroad for a visa while others can simply appear at a Port of Entry.  For applicants for permanent residence there are two sub-streams - applying overseas and applying from within Canada.

The IRPA makes specific provisions for this sort of claim for refugee status by claimants within Canada (with or without legal status) which is in accordance with our international treaty obligations.

Some refugees having fled their countries of citizenship or habitual residence register with the Office of the United Nations High Commissioner for Refugees (UNHCR) and may be referred to Canada for processing.

Some refugees may appear Port of Entry and request protection while others enter Canada illegally and then subsequently seek protection.  They are allowed to do so under the IRPA