I don’t think it’s surprising, I don’t think the Democratic Party really means to be as lax on border issues as the Republicans make them out to be. They want more liberal immigration policies, and are willing to give illegals who were brought here as kids a path to citizenship, but that is different than letting just anyone go over the border, today.
It’s not so much of a shift as it is we’ve all gotten used to the Republican narrative on this, this “open borders” stuff. I don’t think a single Democrat wants to take all the migrants that can come right now. But Democratx want to treat them like humans while we figure out what to do with them. Bit that’s too radical for most Republicans, I guess.
Rashnet