There is little need to argue the point about whether liberals or conservatives are more motivated by fear. It has been factually determined by scientific experiments, numbers of them, that the conservative brain is the one that reacts must strongly to fear. This has been demonstrated not only at the physical level by the fact that the fear centers of the brains of conservatives are larger and the fact that the part of the brain that suppresses fear reactions from influencing reason and rationality are smaller than in liberals, but also in numerous reactions judging fear response and related issues, that conservatives react more strongly.
So it is a scientifically proven fact that conservatives are fear motivated more than liberals are. Conservatives here are arguing that the earth is flat and that evolution doesn't exist.
Another interesting fact about conservative thinking, if you can actually call it thinking in light of the information I am about to present, is that conservatives go for simple explanations to things and do not like to put any effort into thinking and analysis. They just don't like stuff that is ambiguous and complex. A fetus is a baby, for example, so a woman is a slave. The implications of their absolute black and white thinking are lost on them. They are all about self protection of the ego.
The only problem is that their certainty about their own moral rectitude, coupled with their simplemindedness, makes them dangerous for society as a whole when they vote. They are so frightened of the consequences of any change to their conformist rules they can't adapt or evolve to meet future dangers such as global warming. Like frogs in a slowly heating pot of water, they will cook before they jump. Fear, fear, fear! Out of the frying pan into the fire.