" The alternative is to ship these people who cross into Canada in cattle cars back to wherever. "

This is the second time  that you have used imagery of the extermination of jews by nazis to describe the situation of refugees and or migrants to Canada.

Being returned to the USA has no semblance to being put in a sealed cattle car on the way to gassing and incineration in a death camp.

Why this need to dishonour and trivialize the memory of those who died in the millions under unspeakable circumstances?