well,rational people say the god of the bible has been proven false, because it has been. the gods of other religious mythologies have also been proven false.One thing everyone is leaving out of their definition of abiogenesis is "assume" (hypothetical/hypothesis). They "assume" it is natural process by which life arises from organic compounds. Just like they used to "assume" spontaneous generation of life from nonliving matter.
By saying abiogenesis is not life from an inanimate source/inorganic compounds then you must "assume" life, in some form, always existed since/or before the BBT.
The word assume is taken seriously in much of science but if someone assumes God exists then he must be crazy right?
You guys talk about God as impossible, proven false, cant exist when your only honest claim can be "has not yet been shown and may never be". Unless you can show that every potential pathway for God to exist has been explored then you are lying by saying God is impossible, proven false or cant exist.
and as to date, there isn't one shred of evidence to suggest any god, gods or goddesses exist. i don't know of any rational people that say they can prove no god exists.
just as you say, until every avenue of life arising from the known compounds of the universe has been explored, you cannot say it couldn't happen.