First of all, because the question refers to the previous questions, rescinding the safe third country agreement would be the right thing to do.
We have many other problems in terms of measuring undocumented migration in Canada. We don't have any research and we don't have any data. If we compare our knowledge of the phenomenon with that of the European Union or other global north countries, for example, we don't have any research. We have nothing about undocumented migration. Especially since the elections in the U.S., all we know is there is a rise in sanctuary city movements, and they point to the existence of an undocumented migrant population in Canada.
In our research project, we also found a correlation between some of the most repressive measures—designated foreign nationals and the reduction of available recourse, for example—and undocumented migration. That is because these measures deter individuals from using the legal channels. They go underground and they gain time, especially with accelerated timelines, so undocumented migration becomes a strategy, but we know so little about undocumented migration.