The problem has been there since Reagan and long before....it is not something new since Biden.... There have always been the flow of ups and downs with attempts to cross our border. Depending on world affairs and the conditions in these other countries. I don't think singling it down to Biden alone is accurate....it's tunnel vision to me.....
And that is why we need to pass immigration reform, where Congress and the Senate does their jobs, instead of handing it over to each sitting President and their executive orders to decide, roller coasting from ONE President to another and what they want.