Back to the one true religion issue.
It's not rocket science. If there is one true religion, it can't possibly be the religion of Jehovah's Witnesses. Every one of the religion's unique beliefs are nowhere found in the Bible; they have a 100% failure rate in interpreting biblical prophecy, they have failed again and again to protect children from sexual abuse, their unloving shunning policies have contributed to the suicide of former members, their medical quackery has resulted in loss of health and even death of It's members.
Besides all this, they are preaching a false gospel and a false Jesus all around the world and trying to take credit for it.