nor am I going to kneel before You
Oh, I don't want you to kneel before Me. A god's divinity comes from Their worshippers. I only take My divinity from carefully chosen individuals. If I allowed just anyone to worship Me, they could twist My narratives and alter My fundamental nature. I actually have one or two hate cults who revere Me as a Satanic figure, and it's very annoying. I wish they wouldn't. I'm a dark goddess, but not an evil one. I fear one day they'll raise an evil copy of Me from the void.
If it had been the case that physical reality could be altered through belief, then the solar system would be geocentric and the historical data from before the heliocentric model would be inconsistent with our current models.
Well, that's a fundamentally mistaken premise. Reality has no physicality, and there's no such thing as physical reality. Reality exists only in the mind. And obviously the mind interprets historical data in accordance with whatever reality it currently believes in, not in accordance with the reality of the time.
If reality is merely the product of belief, then it seems to me that I should start trying to convince myself that animals love being kept in awful conditions and enjoy being killed, and it is only because of assholes like myself who choose to believe that they are suffering that they suffer in the first place.
No, of course not. You've misunderstood the nature of the multiverse. Sure, you could create a new universe where animals love being eaten by humans. But all the animals in this old universe would still be suffering. You'd just be running away, you wouldn't be solving anything. You have an ethical responsibility to the inhabitants of consensus reality, just as I and everyone else does. We need to ban animal agriculture so that the animals get to enjoy whatever new world we dream up too. It's no good leaving them behind to be tortured and killed.
Actually, it's a bit like how time travel works in Avengers Endgame. See, in the movie, they invent time travel, and then one of the characters asks "Why don't we go back in time and beat Thanos so this bad stuff never happened?" As the Hulk explains, that would only create a new timeline, the old one would still have the bad stuff in it. Multiversal travel works according to the same premise. You have to effect change in consensus reality in order to improve people's lives. It's no good just making a new better universe without helping anyone here. We have an ethical obligation.
The key is to destroy consensus reality so that nobody's left behind here.