Why is multi worlds not a good explanation for abiogenesis

I’m not a expert in the multi world theory. So this question could very well be extremely stupid. However, given the assumption that there are nearly infinite amount of worlds that are slightly different than each other, nearly every possible event would happen. This includes the formation of life. Now what are the odds that we would be witnessing that world, as far as I can tell 100 percent.

Now I’m not clear exactly how often quantum events lead to a slightly different world but even at the rate of 1 quantum event a year in the entire universe. should lead to a near infinite explosion of completely different universes.

Now I’m not claiming that this is the explanation for abiogenesis or that abiogenesis is proof of multi worlds because that would be multi worlds of the gap fallacy however I’m not clear why I have never even seen this explanation even once for abiogenesis.

I also suspect that mathematically many worlds would usually be the wrong explanation for nearly everything because it runs into serious odds problems and in 99.99999 percent of cases there is a better explanation. however it should at least be considered

COULD SOMEONE EXPLAIN TO ME EXACTLY WHERE I WENT WRONG