Perhaps the Great Tribulation will not start with a worldwide attack on false religion, but instead, on the so called "only true religion".
The JW concept of the ‘great tribulation’ is already such a mess, they may as well make up whatever they like about it. Its supposed timing, meaning, and order of events bears no similar to what the Bible actually says anyway.
But in the JW context, the ‘tribulation’ probably will at some point be watered down to just an ‘attack’ on JWs (more likely, blaming ‘Satan’s system’ when the denomination just becomes unsustainable), because otherwise it’s something that will just never happen.
Back in reality, the ‘great tribulation’ was in 66-70. Jesus was supposed to come back shortly after that. He didn’t. Time for people to move on.