Social values such as abortion, gun control, religion in public schools, political correctness, and so on, are all in the tool chest of political power, designed to keep the public from unifying long enough for the Capitalists to create a fascist plutocracy. President Lyndon Johnson was well aware of this strategy
"If you can convince the lowest white man he's better than the best colored man, he won't notice your're picking his pocket. Hell, give him someone to look down on and he'll empty his pockets for you." -- Lyndon JohnsonCompartmentalization no longer works these days as everyone can see the conflicting messages of old-style politics, partly because of the Internet, and partly because the economic stress of 40 years under the thumb of corporate plutocracy has reached critical mass.
It's a new era of honesty, and Bernie Sanders needs no bag of tricks.