I think that most Dems are sincere people.
They dream of a nation where everyone has a job, a home, and medical care. They dream of a nation where there is justice for all, not just those who have money for a good lawyer. They really do care for the all the poor and oppressed in this world who want to come here for a better life.
Since most Dems (and Americans) have fortunately never been beaten up by a street thug, or robbed by a street thug, or lost a loved one to murder, they tend to be very lenient when it comes to law enforcement.
The immigration topic is pretty much settled. People will continue to stream into the United States from Latin America, Africa, and Asia. Perhaps the majority of Americans (of ALL ethnicities) are not thrilled by this development, but there is nothing they can do. The big boys (and girls) of both political parties want it, so it shall be done. The Dems really do not care what Caucasian males think, for many Dems are eagerly waiting for the middle of this century when Caucasian people will officially become a minority.