There's been a complete disconnect between federal tax revenue and federal spending for longer than I have been alive.
Biden has been consistent that he wants to increase the top marginal tax rate on incomes over $400,000. There's plenty of room to debate whether that is a good idea; there's not really an argument that those people are living on the edge financially.
That all said, giving all the refugees a middle class life here would probably be cheaper than what we were spending on the never-ending war anyway.
Just because spending is down for the latest never ending war does not mean it should be reallocated instead of simply cut.
If these illegal aliens find it too cold, they can simply turn and walk back south. Surely Mexico will let them just walk right in.