We don't really have a Trump equivalent. Our problem is more deeprooted in a completely out of touch and dyfunctional government, perpetually stabbing each other in the back and promising, for generations, one thing, while doing the complete opposite - partially out of malice, and partially out of sheer incompetence.

Thus, the downfall of Britain.

But yeah to your main point, maybe you're right, fear itself is not necessary, but an experience of where fear should be manifested likely is. Such as a fear of touching a hot stove - you only need to experience that once to know why!