However, I agree with your second thought. If the Ds really cared about immigration so much, why did they do an all-nighter on climate change which had nothing in their talking about any legislation or even proposed legislation, or any real solutions that could actually have any impact? Why weren't they talking about immigration?
I do disagree with them on immigration. I think that any law that legalizes residency in a "blanket" fashion will not be a good thing for legal, low-wage workers (which would be anything from the min. $7.25 to at least $10/hr ... raise to kids on $20,000/year? That's low-income for even a small family.) It seems that no one who proposes this has any concept of how economic forces work. Unless there are more jobs created, they will just increase the # of people who are unemployed. Seems more sensible to fix immigration first for those workers who have needed skills to contribute. I don't think there is a shortage of $7.25 workers (JMO), but there does seem to be a shortage of jobs for $7.25 workers.