Yes, I understand what you are saying, and that was my position.
However, chain migration is what is killing America. The most important reform is ending chain migration. Building the wall, and eliminating anchor babies is next. If all of the above could happen in exchange for a couple hundred thousand green cards, I'd say we probably will never be offered a better deal.
This is the first time that there has been a serious possibility to end chain migration, and that chance may not come again. DACA is not existential in the same way chain migration is.
Do Lucy has moved the football?