Thousands of Americans have died from conspiracy ideation.
Here are descriptions of two of them.
I will not claim there are no conspiracies, because politics is full
of them. For instance, politicians in the same party often make plans
about achieving political goals; they do not deny this, because that
is what a party is supposed to do. Many other conspiracies take the
form of, "You will stick something in that 500-page bill to give us
hundreds of millions, and in return we will give you a 500,000-a-year
salary after you leave office." That kind of conspiracy is not a
crime, but it ought to be.
The horrible mistake of conspiracy ideation is not that it alleges
conspiracies, but that it sets ridiculously low standards of evidence
for them. Most alleged conspiracies are absurd. If you don't try
hard to separate the few valid allegations from the thousands of bogus
ones, you will believe mostly nonsense. And since it is often hard to
get to the bottom of the matter, there are many cases where you will
not be able to be certain.
On the other hand, the internet of today is full of alleged
conspiracies that are total bullshit, baked fresh every day. So the
first step in rejecting them is to see which sources are careless with
the truth, and stop listening to them. Big Lie Republicans and
QAnonentities are not worth taking seriously, except as dangerous
lunatics.
Studying the details of their bullshit is a mistake, unless you need
that to take action againt them. That will waste your time and can't
do any good.