I went ahead and set this user to "Ignore." You may wish to do the same. But if you're going to be drawn into a rabbit hole with a JW, be warned, it's a nasty fight. They've had over 100 years to perfect their lies. And they have the backing of Satan himself.
I would only debate these people if I were a trained apologist. Otherwise, I may find myself drawn into the pit of hell itself.
I think I would rather debate an atheist than a JW. Instead, it's better to call it out for what it is, pure evil. And warn others to stay away from this vicious cult, no matter what label they call themselves.
Of course, continue to pray for these people. They are God's creations led astray by an incredible force for evil.