So evolutionists don't even believe in their own theory.
Ok you need to read up on an elemntary textbook because clearly you missed this basic info. Spontaneous Generation that existed up until 1864 hasnt been accepted since 1864. Not by any scientist anyways. It stated that organic matter could just pop up from literally nothing. Something from nothing.
The current models of abiogenesis state that organic matter can only come from the combination of elements present on the early earth. To test this in 1952, in the*Miller-Urey experiment, a mixture of water, hydrogen, methane, and ammonia was cycled through an apparatus that delivered electrical sparks to the mixture. After one week, it was found that about 10% to 15% of the carbon in the system was now in the form of a racemic mixture of organic compounds, including amino acids, which are the building blocks of proteins. After Miller's death in 2007, scientists examining sealed vials preserved from the original experiments were able to show that there were actually well over 20 different amino acids produced in Miller's original experiments. That is considerably more than what Miller originally reported, and more than the 20 that naturally occur in life. Moreover, some evidence suggests that Earth's original atmosphere might have had a different composition from the gas used in the MillerUrey experiment. There is abundant evidence of major volcanic eruptions 4 billion years ago, which would have released carbon dioxide (CO2), nitrogen (N2),hydrogen sulfide (H2S), and sulfur dioxide (SO2) into the atmosphere. Experiments using these gases in addition to the ones in the original MillerUrey experiment have produced more diverse molecules. As for why we dont see this process today, "at the present day such matter would be instantly devoured or absorbed, which would not have been the case before living creatures were formed." Charels Darwin
In other words, the presence of life itself makes the search for the origin of life dependent on the sterile conditions of the laboratory.
So to sum up:
The model of Spontaneous Generation accepted up until 1864 has been known to be false since 1964. It states that organic material can arise from nothing.
The current model of abiogenisis states that organic material such as the building blocks of life can ONLY come from elements already in existence and only under specific conditions. These elements such as carbon were born through natural processes during the forming of the planet, solar system, galaxy, and universe.