The first step is to recognize how people operate.
1. People are afraid.
2. People want power and wealth.
The Democrats understand this and use it to win elections.
You can call Democrat voters stupid or clannish or duped.
I refer you back to 1 and 2.
Today, people want security, economic security, medical , criminal, terrorist security.
They've been indoctrinated to believe the government can supply that security.
Sanders comes along and promises even more than Hillary.
They have no idea how or who will pay for it. And don't really care. That's the government's job.