It's simple, really.
Any bad thing "doom and gloomers" predict is dependent on the will of one or more Bad Guys, and none of us has access to their secret meetings (Unless you are a high-ranking member of the WEF or similar) So there's always the question of "WILL this happen", will they go forward with it, will they succeed even if they decide to go forward with it, and WHEN will they implement this dastardly plan.
EXCEPT FOR ONE DOOM & GLOOM PREDICTION: a collapse of a fiat currency system like ours. That only requires mathematics, not infiltration of the Illuminati or WEF. Some laws like "What goes up, must come down" can't be broken. We can look at the history of fiat currencies over the past 200 years for example.
Those who've studied the issue know, for example, that if the "National Debt" could be paid back, there wouldn't be a dollar of currency left in circulation. Not physical or digital, not in the hands of the rich OR the poor. Every dollar is brought into being by an act of debt. Let's just say it makes sense that each president has to go into debt twice as much as the president before him -- that's how an exponential rise works. It's not a question of fiscal responsibility, political promises, or any of that -- they have no choice.
WHY does it have to keep going up? Because they have to borrow enough to pay back previous loans, PLUS the interest. The interest is the secret ingredient. When the Gov't borrows 1 trillion, they only get 1 trillion from the Fed. Not the extra 100 billion it takes to pay interest on it every year thereafter. If you plot that out on a graph, it is NOT linear. It goes parabolic at the end. That's the stage we're in now. The scary stage where it goes vertical, where it goes To Da Moon.
P.S. That is one of the curses of the human condition: an inability to grasp the Exponential Function. If you pictured a graph of a 10% rise (compounded) every year, 99.9% of people would picture something linear, a.k.a. a straight line. But that is not true! It would actually look like a curve, with a parabolic spike at the end.