Abiogenesis is a belief, biogenesis is the law. No matter how much handwaving is done.
No, abiogenesis is a scientific hypothesis, not a "belief".
It's one of a list of hypotheses relating to origins of life on Earth, another hypothesis is called panspermia.
None of these hypotheses are strongly confirmed, all are subject to future falsifications, but some research has produced interesting results, including the discovery that certain organic molecules (no, just molecules, not "life") under the right conditions can reproduce themselves.
And biogenesis is not a scientific "law", it's a confirmed theory which does not address the question of when, precisely, do we classify complex chemistry as simple "life"?
For example, is a virus "life" or "chemistry"?
I'd say "chemistry", but it's a matter or word definitions.
So there's no "hand waving" here, just the facts, sir.