Wrong. There are plenty of experiments that can be done to test various aspects of theories of abiogenesis. E.g. the The Miller–Urey experiment showed that organic molecules can form. Various experiments have shown that lipid cell walls can spontaneously form, etc. There's various research on the RNA world hypothesis that shows that biologically important molecules such as RNA itself can arise spontaneously.
http://www.sciencemag.org/news/2015/03/researchers-may-have-solved-origin-life-conundrum There are all the experiments on how pre-life lipid vesicles can arise and how they react in various physical states (temperature, forces).
Except that the state of research into abiogenesis is very different from how you portray it, and looks at proto-life much simpler than what we have today.
There is evidence.
People are testing processes. The research literature is full of such research. Some experimental results fit the theories, some don't which leads to theories being modified or discarded. You are trying to depict abiogenesis research as wild speculation, but it simply isn't. As anyone who watched (e.g.) these videos by a scientists, which it appears are being attacked by a creationist '1 star bot'.
Seemingly, extinct. We haven't found them. That in no way means that they didn't exist. Do you claim that dinosaurs didn't exist because there are none around today?
Except of course it doesn't as life itself has changed the environment. Most theories of abiogenesis require there to be a chemical 'soup' of organic molecules. Now that we have a world full of life, such molecules are consumed and the soup no longer exists. However, there are natural lipid vesicles found in nature, etc.
I called your depiction of abiogenesis 'a ridiculous strawman' because it doesn't match any reasonable theory that I know of. Can you name the scientists who are claiming that life of modern complexity appeared out of nowhere?
It did make sense. However, it's wrong as it's based upon a number of wrong assumptions. E.g. that abiogenesis theory says that modern style complex organisms appeared from nowhere, and that early life forms must still be found today. Both are wrong.
Really? Where is the objective verifiable evidence of miracles then?