We may need to resurrect Jax's thread about the origins of language… (That is the correct phrasing, by the way: Language itself had an origin, not individual languages per se.) Your slight at English -that it is lacking in consistency- is bombast, and you know it. That learning enough to "communicate" in English requires only idiocy is a trope only a zealot would use. Every human language is readily accessible to most humans, if they're exposed to them early enough, and you know that.
(Those that can learn other languages as adults are rare… And they are more like geniuses, since intelligence is no prerequisite for their talent!)
Furthermore, with some very few spurious or questionable exceptions, no one in modern times has ever discovered a "primitive" human language… Do you have information to the contrary?
I'd be interested to know. A truly primitive human language would tell us much about the evolution of language…
But perhaps you think God created all human languages -maybe at the same time- and, in that case, there is not much for the science of linguistics… Let me know, huh? I'd not waste your time or mine on irreconcilable differences!
I was once being divorced by a young lady who used the grounds of bigamy to pursue her claim. In the state of California, that is a charge for which one must prove one's innocence rather then be proven by prosecution to be guilty; the penalty, at a minimum, was a ten-year prison stay!
We met at a park, she and I; neutral territory!- and discussed my predicament. I persuaded her to change the grounds of her request for the dissolution of our marriage to the no-fault stand-by, Irreconcilable Differences…
She acquiesced. (I applied reason, for which she was woefully unprepared. — If you ask, I'll provide the particulars: But privately. Did I mention that logic was not her strong suit? )
Then, she asked me -after she'd changed the stated grounds to irreconcilable differences- to contest the divorce!
(She hoped for a reconciliation, she said. )
If she filed for the divorce -on those grounds- and I disagreed, her grounds were proved! She was a woman who knew nothing of logic…