There's a kernel of truth in the complaint that small businesses don't necessarily treat their workers any better than MegaCorps do. MegaCorp HR will randomly lay you off because of some number in a spreadsheet somewhere, while Small Business Tyrant will get all up in your personal life and badmouth you on the local Facebook Group if you're a "difficult" employee.

Both types of businesses will also happily underpay you (small biz because they don't have the revenue to pay you decently, MegaCorp because they can get away with it and another spreadsheet tells them they should underpay you).

It's sort of similar to the mom n' pop vs corporate landlord discussion. Both can be bad in very unique and different ways.