Much of what I said was without regard to how it could be achieved. We may need a constitution amendment or an activist SCOTUS for some of that, I admit.
I defined "full border security" in a reasonable way, not the absolute way. Deterrence of illegal immigration is effected at the margins. A wall is not perfect, but it deters some.
On residency for adult illegal immigrants, you said, "Agree with the first line of item 3, with caveats like maintaining a clean record, and a narrow path to eventual citizenship." I thought about retaining a right to deport these adults if they become criminals, but I decided just to imprison them like we do US citizens. Either works.
Like you, I believe we should make legal immigration easier, and illegal immigration harder. I've lived in a community of Mexicans. I saw that they were always up early going to work in the morning. They can be good for our country.