Perhaps a more interesting discussion would be to ask what each person thinks the great tribulation will be like. Russell saw it as a period of anarchy, with conditions getting worse until such time as Jesus stepped in to establish the kingdom of God and destroy man-made governments. But what would that be like? 2019-2021 USA? Present day Venezuela? Russia? North Korea? Ukraine? Some other example? Something even worse?
Either of the world wars would seem to have been an example of a great tribulation. People dying in large numbers, the economies of many nations being almost wiped out, humanity in such disarray that either disease or despots took advantage to introduce even more suffering. But we have kept on going. So the great tribulation would need to be even worse, since it would need to be cut short to save humanity from extinction. What else could happen that was worse than those times?