I don't have any problem with the first two "demands".

There's problems with the first two demands, though.

You currently don't - and probably shouldn't - get to walk out of prison without serving your sentence just because you're here illegally. My understanding is that the feds have require those folks to serve their time, first. You stay in prison, rather than getting to go free in another country.

And turning everyone over to the feds upon arrest can cause problems, because not everyone who is arrested is guilty of a crime. Many (probably most) people who are arrested end up without any charges or having their charges dropped. Sometimes they've got the wrong person, sometimes the arrest is prophylactic ("we don't know what happened and/or who did it, but we're bringing this guy in just in case"), sometimes it turns out later that the facts are fundamentally different than what the police thought, etc. But if every person who is here illegally will get thrown out of the country, then large swatches of the community will be less likely to cooperate with law enforcement. If you hear my neighbors having a major fight next door and you're really worried about it, you might call the cops - but if calling the local cops means that one of them might end up being deported without having actually committed any crime, you might be a little less likely to pick up that phone....