Then we learned that their port-of-entry was Montreal, Canada.
Once in Montreal, who knows if they crossed the St. Lawrence River legally?
I doubt it.
Here is an informative update from Washington State Representative Pramila Jayapal: "Jayapal Goes Inside Federal Detention Center to Meet With Asylum-Seeking Women: 'The mothers could not stop crying'" https://jayapal.house.gov/media/press-releases/jayapal-goes-inside-federal-detention-center-meet-asylum-seeking-women-mothers
Not only do these women have legal right to request asylum, there is a larger context that begs justice on a deeper level.
By my lights, anyone with native American ancestry has a preemptive claim to reside in America.
By contrast, I urge you to read the following Snopes article about "residency claims" made by our white European forebears.
"Did Christopher Columbus Seize, Sell, and Export Sex Slaves?" https://www.snopes.com/fact-check/columbus-sex-slaves/
"The Official Story" (eagerly embraced by American conservatives) rarely occupies the same universe as "The Real Story."
Uncle Sam has blazed a long trail of tears.
Opinion does not trump Truth.