IMO a fair summary of where, and why, we are in this situation.
Note that the Biden administration is on record as supporting the GOP objectives for securing the border...as noted in this excerpt...
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By the fall of 2023, Democrats were willing in principle to support a bill that focused entirely on border security without provisions to legalize the status of any migrants who had entered the country illegally, not even the “Dreamers” brought to the United States by their parents while they were infants and children and who knew no other country. The Senate team produced such a bill, but it did not meet Republican demands, for substantive as well as political reasons.
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If you're truly upset about the current situation, direct your ire at Donald Trump...I still don't understand why you carry water for him...whatever happened to your sympathies for Ukraine?
Link: https://www.brookings.edu/articles/the-collapse-of-bipartisan-immigration-reform-a-guide-for-the-perplexed/