It might not be super accurate in terms of specific numbers, but it establishes the base idea of which we see played out in the economy. That is why overall we see a flat to net loss in jobs.
You're refuting your own point. If the number of jobs remained flat if would be showing the opposite of the base idea the supply and demand curve shows. This is why it is stupid to use that chart here.
The model is simplified to make it clear of what the effects will be, and reality has far more inputs, but its not meant to work on a real market. His use is perfectly reasonable to establish the idea. Its why raising wages by raising the floor will reduce employment. That not happening in a vacuum has no relevance to the concept.
It has every relevance to the concept when the effect of raising the floor does not reduce employment, haha. I would suggest you go back and read Uglycassanova's posts and how he tried to use that graph and then revisit this as Blackjack is 100% right.
So when Agent says its only used by dummies he is wrong. When BJ says its not good at doing something its not supposed to do, I reply.
BlackJack was saying it is not good at doing something that Uglycassanova tried to use it to do. Saying that raising the minimum wage decreases low level employment cannot be established by using that model and if someone were to try and establish it using that model they would most certainly be a dummy.