They, at least, can point to a naturalistic of origins that make sense. ToE has yet to do that with abiogenesis. Bear with me. Solid science deals with areas where we have definite knowledge, good evidence. Speculation deals with areas where we have too little knowledge and information to make definite statements which are confirmable.
Science is divided into areas of study.
Quite often one area of study theoretically rests on another area of study but, and this is important, we do not need to have the originary area well worked out to be able to study the derived area. For example, the properties of chemical reactions depends on the chemical bond which is based on Quantum mechanics. People were studying chemistry long before quantum mechanics was worked out. Similarly before World War II, the larger questions of cosmology, the origins of the universe were speculation and were not considered to be solid science. We didn't know enough to make well informed statements.