I've tried to find evidence supporting these claims on my own, only to discover that there have been fewer terrorist attacks in the last, say, 16 years than in the years before, and better economic standing for minorities in the same period versus before then. I've been able to find a slow but consistent improvement to the overall quality of life of Americans by any objective measure I could discern. It's still subjectively and objectively bad for some groups, but even there, I can only find evidence of a slow but consistent improvement over time.
What am I missing? If I and others can understand that, maybe we can make a difference.
Which candidate are you referring to? Both major candidates are aiming to pick up votes by spreading fear of the other candidate. I'd argue that's pretty much their strongest argument at this point.