This is completely normal for laws.
Your kitchen at home doesn't have to follow the same rules as restaurant kitchen, for example. You as a driver of your personal car don't have to go through the same process and registration as truck drivers do. Small stalls selling things have different rules than big stores. And so on.
Sure, and it's possible to heavily discount your opinion when compared to the hundreds of opinions of experts in antitrust law that helped shaping this legislation. This would be less the case, maybe, if this legislation actually targeted you, so your insight would be relevant; but the fact is that it doesn't.
This is a very perceptive extension of the famous Steinbeck quote. The sentiment is certainly not limited to the blue-collar labor class of which the original referred.
And it makes sense. Let the small business experiment a bit, give them a bit leeway and once they grew to a certain size, expect that they think about the bigger picture. Which our dear monopolists only do in their favor.
A person, even if very rich, has a limited lifetime and a limited amount of hours in a day to spend. A corporation is immortal and can have 100,000 people simultaneously working on something. It’s bizarre if the law pretends that such an entity is just another human.
If you start a grease fire, you burn down your house.
If you serve meat that's been stored at room temperature, you make your family and some friends sick.
But a commercial kitchen's potential for harm is much higher in many ways.