The theory of evolution applies as long as life exists. How that life
came to exist is not relevant to evolution. Claiming that evolution
does not apply without a theory of abiogenesis makes as much sense as
saying that umbrellas do not work without a theory of meteorology.
Abiogenesis is a fact. Regardless of how you imagine it happened (note
that creation is a theory of abiogenesis), it is a fact that there once
was no life on earth and that now there is. Thus, even if evolution
needs abiogenesis, it has it.
