What are our standards? Letting an unlimited number of people into the country per day without any sort of legal process or system? I genuinely don't understand what people here are arguing for...

The ACLU has no legal leg to stand on here and are just doing performative politics to raise donations. Despite what libertarian "sovereign citizens" would tell you, last time I checked civil liberties don't include being allowed to travel and live wherever you want without any sort of legal process. Putting a rather generous upper limit of 2,500/day for asylum claims (from non-port border crosses only) isn't a violation of anybody's rights.