Q: "Is it possible that what we are witnessing is the decline of a civilization and not just the USA but also the West in general?"
A: "The USA is suffering, that actually born of its corruption, is suffering something that is the exact analog of the process that causes a body to degrade and fail over time. In effect, what makes a body fail, is that many genes have two or more properties, and when a property is very good for you early in life, it tends to be captured, collected, and amplified by selection, in spite of its late-life downside, because many individuals don't live to suffer the late-life effects, and most have already reproduced by then.
What we have in the US, in very potent form, is a system in which when a process, lets say an industrial process, has very good early benefits, that is to say it's wildly profitable, and it comes with late-life effects that are very destructive, like lets say it deranges civilization by causing people only to hear viewpoints that reinforce viewpoints that they already think. That process, by the time we recognize the hazard, is unstoppable. We cannot go in reverse, even when we discover that we're in mortal jeopardy because the process puts us in danger.
That's the exact same thing as the process that causes the body to fail, so in effect civilization is experiencing what we call senescence."