I think the real cause is that change SEEMS to have happened very fast in this country. Older voters are in shock at what has happened to the nation they were born in. Look at the hot button issues; gay marriage, transgenders, legalizing pot, abortion, death penalty, secularization of schools, civil rights, women's rights, anti-police rhetoric,etc. The people who remember the 50's or 80's fondly do not like all of this change and how fast it has come. They have children and grandchildren that live in sheltered pockets where they look upon grandpa's era as the golden age of America and they don't like this America either. People are pissed at the PC, pro-choice, church bashing, LGBT rights stuff that is shown on their precious TV's every night. Why do you think Duck Dynasty was so popular? There is a whole segment of the population that feels left behind and they are latching on to Trump as a savior.