The definition you posted refers to "the sex that can bear offspring or produce eggs" invoking a biological capacity inherent to females rather than using the present indefinite tense, "produces" as you have claimed above.
So what? You might note that Oxford's own definitions for "male" use "produces":
Definitions from Oxford Languages · Learn more
male
/māl/
adjective
of or denoting the sex that produces small, typically motile gametes, especially spermatozoa, with which a female may be fertilized or inseminated to produce offspring.
https://www.google.com/search?q=mal...BMgYIBxBFGEGoAgCwAgA&sourceid=chrome&ie=UTF-8
The point is that a great many more or less reputable sources endorse the standard biological definitions, and many more don't. For an example of the former see Wikipedia:
An organism's sex is female (symbol: ♀) if it produces the ovum (egg cell), the type of gamete (sex cell) that fuses with the male gamete (sperm cell) during sexual reproduction.
https://en.wikipedia.org/wiki/Female
Though their sister organization, Wiktionary, has clearly been corrupted by gender ideology:
female: Belonging to the sex which typically produces eggs (ova), or to the gender which is typically associated with it.
https://en.wiktionary.org/wiki/female
"typically"? Maybe an atypical female produces sperm? Inquiring minds and all that ...
A bloody useless definition, certainly not a logical nor a scientific one.
That Oxford drops the ball on one of the pair proves diddly-squat -- apart from the ongoing efforts to bastardize and corrupt biological terminology which many here seem fully on-board with ...
The issue is still what reputable biological journals, encyclopedias, and dictionaries stipulate as the necessary and sufficient conditions to qualify as referents of the terms "male" and "female". And they SAY the on-going current and regular production of gametes. Period.
Let's go back to your car analogy. Suppose we have a new Ford factory set up such that it can produce cars next door to a new Schwinn factory set up such that it can produce bicycles. We could tell which factory is which even before they finish producing any products, because they are set up using different machines, tools, and parts in stock. We might even go so far as to say one factory has been arranged such that it "can...produce" cars whereas the other one is set up such that it "can...produce" bicycles. You might well feel the need to wait until finished products are rolling off the lines to discern the difference, but we needn't take such a cautious approach in the face of counterfactual claims such as "The Schwinn factory can produce cars."
Your "can produce" is still something in the way of a future production. The prepubescent
probably can produce gametes in the sweet by-and-by, and menopausees probably
could have produced ova in some ancient past. But none of them are actually producing gametes RIGHT NOW.
That is the whole point of the "produces" being "regularly", in the present at the time of the labelling, as a precondition for applying the label:
Grammarly: "We use the simple present tense when an action is happening right now, or when it happens regularly (or unceasingly, which is why it’s sometimes called present indefinite). Depending on the person, the simple present tense is formed by using the root form or by adding s or es to the end."
https://www.grammarly.com/blog/simple-present/
We might say that Sally, as a prepubescent XXer, isn't producing any ova right now, but some time down the road she will become a person who "produces ova" [present tense?] at which point she will get her female membership card.
You too seem rather desperate to avoid facing the fact that a necessary and sufficient condition to qualify as a referent of the terms "male" and "female" is to have functional gonads that are fully on-line and cranking out product. Wonder why that might be ...
You might actually try reading and thinking about this, about the principles undergirding the biological definitions:
https://en.wikipedia.org/wiki/Extensional_and_intensional_definitions