Well, they're certainly making a lot of noise... :)
The improving economy probably also explains he articles I have been seeing warning that we are about to have a crash
This is just more noise by various species of hustlers, as you say. But some of the trends seem real. It's hard to ignore all that debt, record immigration - legal and illegal, rapid rises in energy prices, increasing religious turmoil and confrontation, signs of environomental stress.
....rapid rises in energy prices....
The strength of the capitalist system signaling scarcity. In response to scarcity additional supply is provided and prices ease.
increasing religious turmoil
? You mean political correctness dictating that nobody say Christmas?
signs of environomental stress
Things like the global warming measured on the planet Mars? If liberals could only explain how we are causing that.
Or how the Vikings were raising crops in Greenland in the Middle ages?
There are several kinds of debt - personal, business, government - but a booming economy works toward mitigating them all. The immigration is also of two kinds, as you note, but both are usually put immediately to work, again increasing economic activity and adding rather than subtracting from the economy.
The other two - religious turmoil and confrontation and "signs of environmental stress" - are sometimes real and sometimes just liberal ballyhoo. Either way, their impetus is from the liberals and the liberals are working more to destroy our country than improve it.
Domestic religious turmoil is the result of liberals trying to eliminate Christianity, first, and all religion later. International religious turmoil is laid at the feet of the Democrats friends, the Islamists.
I'll have to confess I have not seen the environmental stress you mentioned and especially none that affect the economy. If you are talking about "Global Warming" I relegate that to the Grimm's Fairy Tales corner.