What significant changes have occurred in the demographics of illegal immigration at the US southern border during the Biden administration?

The demographics of illegal immigration have dramatically shifted beyond the traditional pattern of migrants primarily from Mexico and Central America. According to immigration policy expert Todd Bensman, over 50,000 Chinese nationals have crossed the southern border since the Biden administration took office, representing a record-breaking surge. These migrants often travel through multiple countries, sometimes as many as five, reaching places like Chile before making their way north to the US border. This demonstrates a complex new pattern where migrants from diverse global origins are now part of the immigration flow, facilitated by policies that allow rapid processing into the US interior within 48 hours.