You do understand what an analogy used for the purpose of illustrating a point is, right?
What is it with people and being literal to the point of making a conversation painful?
I could explain all of your questions for you, but it takes a lot of groundwork laying that you should have probably picked up on your own by now, and at least a little bit from the education system.
Is all they teach you in school how great Karl Marx is? Did you learn how businesses operate? Assets, liabilities, profit margins, overhead, OSHA, etc?
C-level executives usually set an operational budget per business department. There is a labour budget included in that. It’s a managers duty to use that budget to fill out the labour needs of the business, based on sales and sales forecasts and any other upcoming business changes.
It’s not really as easy as ‘just hire everyone who walks in the door and don’t enforce any attendance policies, if they want to work they’ll show up. Sure, some days we will have more than we need, and other days we won’t have enough, but if the communities needs more tires, I’m sure they’ll just come in and do the right thing.’
Seriously, have you ever had to depend on someone doing their job before? I’m guessing not.
Anyway, we aren’t really talking about societies need for tires, we are talking about capitalism