They are not the first priority for deportation. Has President Trump promised them they will get renewals of the deferment in 2 years? I have not heard any hint that there will be renewal upon renewal. Once the wall is build and the criminal aliens are deported the DACA can be reevaluated.
This “all or none” “now or never” approach is not reality based. It is the way to insure that it’s none never.
USCIS is renewing DACA permits daily, some 600+ and issuing new permits to 140 new illegal aliens every day.
They are never going to be removed, that’s why the President told them they could rest easy.