History shows their kind always fails...
Past performance is no guarantee of future results, of course, and there is no telling how many millions of innocents will die before the malignant morons burn themselves out, but they have always failed miserably in the past.

In part their zeal comes from a recognition of this- thats why they cling to the flags of the brutes we have crushed in the past.
They need to be treated as what they are- a threat to humanity, they should be isolated, and treated as lepers. They have the freedom to say whatever bigoted garbage they want and the rest of us have the responsibility to tell them their views are despised by our society and will result in ostracism.

They are- deep down, and in every way that matters, losers. So when Trump promised to finally make them 'winners', they could not resist- even if it meant throwing away their supposed values of fiscal responsibility, law and order, etc...

"What do you have to lose?" Trump asked them with a greasy smile.

They will learn the answer to Trump's question, and they will be very unpleasantly surprised.