Lord but you are stupid beyond belief. These people are NOT illegals, you stupid dolt. They are refugee claimants, in the USA legally.
Build walls and waste money. It's not Biden's policies that are the problem, it's Donald Trump's dismantling of the entire refugee and immigrant processing at the border that has caused the problems. Donald Trump declared a national emergency at the Southern Border. This is his problem, and like everything Trump touched, he made it much, much worse than it needed to be.
Now Abbott and DeSantis are just being assholes. They refuse to discuss the problems or how to solve them. They've turned down every offer of assistance from New York and California. This is just a stunt to get Trump and his legal problems off the front pages.
Last but not least, Republicans seem to have no understanding of what "sanctuary cities" means. Santuary Cities are simply places where those in the country without documentation can report crimes committed against them, without fear of arrest for being in the country illegally. That's ALL it means.
There are no special programs or services available for undocument residents. They are not given anything special. There's no housing, jobs or money for them. Just the ability to live without fear of being preyed upon by criminals.