Yes, due process is important. Habeus corpus is important. Rule of law is a cornerstone of democracy. People acting for the state, such as border police, should act lawfully; they should identify themselves, wear the proper uniform, get the proper warrants and so on.

Why? Because you're breaching innocent peoples rights and removing their ability to get justice.

The fact that prior administrations did this on a large scale without the need to have gangs of thugs shows that the lawlessness of the administration is unnecessary to meet the ends of managing immigration.

Could you explain why you consider this a strawman? It sounds like you're onboard with the dismantling of USA democracy?