these "refugees" were never vetted

Of course they weren't. Actual vetting might have turned up cases where people would have to be sent back. Would liberals really be able to muster the backbone for that? Better from their standpoint not to puncture the fog of ignorance, making it easier to virtue-signal.

none of them were willing to fight for their country

It's so ridiculous that the narrative is "These people helped us, so we must take them in because they believe in Our Values™ - that's why they helped us!" as if we're necessarily getting the most virtuous Afghans (virtuous by liberal standards). In reality, many Afghans helped the American forces because they were being well compensated. So we're not getting the most virtuous, only the most mercenary.