Why are the MacBook screws not in the midpoint?

Those are likely to be tiny machine BOLTS [i.e., not tapered], that go into a threaded brass fitting on the adjacent component.

Variability in parts and tolerances means that sometimes, things don't quite line up in the center. Like every manufacturer, Apple has a standard for how far off they can be to still be functional, and if they exceed that standard, the parts are supposed to be re-worked.

I don't personally have one, but I have worked on a couple of them and the older laptops and once in a while a screw doesn't go in correctly and I have to reseat it. As long as the screw head is not above the metal where it can get caught on something, then it is not a problem and just ignore it.

If the screw head is above the recessed opening so that the case there is not "smooth" and you catch your finger on the screw, or you think there is a problem, then have Apple or an Apple Authorized Service Provider examine the laptop to adjust the bottom case & screw.

Sometimes things just don't go as planned during manufacturing and things can get a little off. As long as the screw head is flush with the case (or below), then it is just cosmetic. If the screw juts out above the recess opening, then have Apple or an Apple Authorized Service Provider reinstall the screw since the screw may scratch the table top or catch on your clothing or the material of a laptop bag. They may need to remove the entire Bottom Case.

Apple sold 20 million Macs last year. A lot of them were MacBook Pro models.

that is a run rate that exceeds 47,000 units a DAY over 50 weeks.

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If you bought direct from Apple, not from a Reseller, you have 14 days from receipt to return it for a full-value refund or exchange.

Perhaps they were hoping you would spend more time looking at what was on the display, not the visual symmetry of the bottom plate.

Hi,

I feel Apple product quality is getting worse and worse these days. :-(

You are welcome to ask, but I do not have that model.