Okay, so let's say that for some reason an amendment passes that says the government doesn't need to follow any of the Due Process for anyone that is an undocumented immigrant. For the undocumented it suspends the following: 1) informing you of the actions they're going to take against you (the charges), 2) giving you the opportunity to respond to those accusations 3) access to an impartial judge 4) a lawyer 5) a written record of the proceedings for future review 4) Evidence 5) written transcript of the trial for future reference and 6) the right to appeal.
Those 6 things are "due process". For any illegal immigrant they don't need to follow any of that. It's just for citizens now. Anyone who is an illegal immigrant is deported that day. (no need to provide living facilities or even a jail if there's no due process).
So, the leader of the opposition party gets elected. Then one day at your place of work ICE agents show up and point a finger at you and say, "that's an illegal immigrant." They slap some cuffs on you, throw you in the back of a van. And it's already full of other guys. Guys you know. Some personally, some by name, and others by reputation. But you know they're citizens just like you. And also members of the same party as you- the one in opposition to the current leadership of the country.
Then in a few hours you're on a plane. Then you land in another country, you don't know where you are because you don't speak the language. Then they throw you in a prison.
The whole time you and all the people with you kept insisting that this was wrong and all of you were citizens of the United States. They just laughed and shouted at you to "shut up, immigrant!"
And if you're thinking, "they can't do that, I'm a citizen!" what's to stop them? You suspended due process. They don't need to provide any evidence. or written charges. a trial. a lawyer. a written record of what happened. or anything.
they just need to point a finger and throw you in the back of a van. There's no record of what happened to you so your family can't do shit. They won't know who took you, where they took you, or what happened. You're in prison in a country whose language you don't speak. So... good luck.
THAT'S why it's important that 1) everyone is innocent until proven guilty and 2) the government MUST go through a reliable, documented process. A due process.