My point is that “how life could have arisen” is not part of evolutionary theory. Neither is Miller's experiment “junk science”. If the textbooks actually read as ‘reported’ then yes, the textbooks are making a rather grandiose claim on scant evidence; but it is NOT “junk science” but “bad textbook writing”, and it has nothing to do with evolutionary theory.
But I guess it IS too much to ask that people actually KNOW about a subject before they write about it. The author of this is either completely ignorant, or engaged in propaganda to those who he assumes (correctly) don't know much about science - his target audience, creationists.
The claims for Miller’s experiment are not just “rather grandiose.” They are just plain bogus. And, according to the article, these claims appear widely in science textbooks. That *is* junk science being perpetrated on future scientists, and THAT is what should alarm you — NOT some semantic quibble about what is or is not “evolutionary science” or “junk science.”
Do you have any idea how hard it is to refrain from calling pedantic fools like you what you are?