Theists proclaim the necessity of belief (believe or perish) in a god as follows
I don’t believe in that kind of God. Personally I think God is greater than any of us can understand and that he is able to rescue all humans in the end - if that’s what he wants to do. And the Bible tells us in a number of places that’s exactly what he want to do. Remember this verse JWs used to quote to explain why Armageddon hasn’t arrived yet.
Jehovah is not slow concerning his promise, as some people consider slowness, but he is patient with you because he does not desire anyone to be destroyed but desires all to attain to repentance.
When I had a JW mindset I used to paraphrase that verse in my head to mean something like: “Jehovah is being patient because he wants as few people to die at Armageddon as possible”. But that’s not what the verse says. What it actually says is that Jehovah doesn’t want anyone to be destroyed but wants all to attain to repentance - not just a few, or some, or even ‘as many as possible’. It says ‘all’, plain and simple. Can God accomplish what he wants? If God wants all to be saved can he make that happen?
Universalism has a long history in the Christian tradition, from Origen in ancient times to the modern theologian and author David Bentley Hart, who makes an excellent case.
https://en.wikipedia.org/wiki/Christian_universalism
Charles Taze Russell was I believe a universalist at heart. His opponents accused him of being a universalist and he disowned the label because he couldn’t quite see that everyone would be saved according to the scriptures. But he had a much broader view of salvation than many of his contemporaries and than JWs today. The man who ‘turned a hose on hell’ ruled out eternal punishment as completely contrary to God’s character well ahead of the mainline churches who have since moved closer to his position. He reckoned pretty much everyone would get a resurrection, including Adam and Eve, and that many would accept the invitation to live in perfection. He didn’t rule out salvation in other churches. He didn’t go the final step and say that everyone would be saved, but he was closer to that position than the more narrow prospectus of modern JWs.