We have a Prime minister who has had the bad judgement to tweet to the world that Canada is open to all refugees. In addition we have a Minister of Immigration who is a former Somali refugee and who was the former President of the Canadian Somali Congress. We now have an unprecedented number of Somali refugees entering our borders illegally. Clearly the message has been sent that they are welcome to come to this country whether or not they qualify as refugees and there is a perception that it is unlikely that we will send them back.  
While, under normal circumstances, I would agree with Christian Leuprecht that the best solution is to add more resources on the ground to determine quickly if these people do qualify as refugees and to return those that do not immediately. However, given the leadership of the Immigration department, it is extremely unlikely that many will not be welcomed whether they qualify or not.