I never heard Trump say he was going to remove 30 mil illegal aliens.
Then you weren't listening.
As a candidate Trump said "They (the illegals) All Have To Leave" , many, many times. Is this news to you? Go listen to some early rallies, he says it, repeatedly.
Now, why would you want them to stay? First off, they're criminals, secondly they seem to only breed Democrats. Is that what you want?