Oh my fucking god will you please listen.
If I don't make a claim, I don't need to provide you with evidence.
The correct answer to your question is 'we don't know', that's the honest truth, and it's neither a claim nor belief. Life could have arisen any which way possible.
However, if I claim that a Magic Toaster created life, then who needs to provide evidence? It is the person that makes the claim. You are in that position, and so you hold that responsibility.
This is a pointless thread and you have sucked me into it with your blatant buffoonery.