Two points to be made.
First, back in 1861, an ADVENTIST named Loughborough wrote this:
"The first step of apostasy is to get up a creed, telling us what we shall believe. The second is, to make that creed a test of fellowship. The third is to try members by that creed. The fourth to denounce as heretics those who do not believe that creed. And fifth, to commence persecution against such."
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The second thing to be said is even more pertinent.
BELIEF, or CREED or THEOLOGY is non-testable and non-falsifiable and cannot be proved wrong.
What is DIFFERENT about Jehovah's Witnesses is the crazy way they have set themselves up time after time to be DISPROVED.
How?
They have always indulged in being very bold in asserting (behind God's authority) SPECIFIC DATES which they explained
in excruciating detail as to exactly what that DATES would mean.
JW'S HAVE MADE THEIR INEPTITUDE FALSIFIABLE like no other religion!
EXAMPLE:
By teaching 1874 was the invisible, Second Advent of Jesus, C.T. Russell and Judge Rutherford merely asserted a certain belief.
HOWEVER--by CHANGING that date to 1914 (done so in the year 1942) they automatically made themselves WRONG publicly and irrevocably.
See?
Simply believing and teaching an IDEA of INTERPRETATION is what all religion does.
JW's CHANGE their minds--but--they do so after having carefully explained how Jehovah, angels and holy spirit were channeling BOTH the "wrong" teaching and new "right' teaching.
They have done this over and over again.
Craftily, they act as though this is GRADUAL and organic growth. IT ISN'T--it is SELF-CONTRADICTION.
EXAMPLE:
Judge Rutherford, through Watchtower publications and public speeches, CHANGED the historic Christian doctrine of ROMANS 13:1,2 peremptorily.
Rutherford said, The actual Superior Authorities were Jehovah God and Jesus Christ.
Okay, but the WTS changed back to Christendom's ORIGINAL and HISTORIC literal understanding in 1962. So what?
BY CHANGING BACK they automatically MADE THEMSELVES WRONG.
See how stupid this is?
The WTS disproves itself because IT CAN'T KEEP ITSELF FROM TAMPERING constantly with its own belief system.
This makes it a SELF-REFUTING religion.