Let's say there's a paradise/heaven that we can enter after death. The thing is, everyone gets to enter or no one gets to enter. That's just how it works; there's no judgement day or weeding out process. The alternative is nothingness or non-existence after death.
Let's include beloved animals in this outcome, not just every human who ever existed (either conceived or born, whichever suits you).
Which outcome do you choose for everyone?
All enter paradise.
All cease to exist.