... so far there's no proof at all that it DID happen right here. "
Sure, when it comes to origins of life, we're not talking about observed facts here, we're not talking about confirmed theories, we're not even talking about falsifiable hypotheses.
We are talking about brainstorming proposals, laboratory testing, kicking ideas around... that's all there is.
You are free to take it seriously if you want, some people do.
But there's no compelling evidence to confirm any origin of life idea.
Yet.
