I think it's more than modern companies have, for whatever reason, become extremely scummy. They seem to have no values, ethics, or even regard for their own customers. The only thing that seems to matter to them is squeezing out a few more pennies from people, even if means the likely longer term implosion of their own companies. It's just bizarre to me how many companies, and in different industries, seem to be at war with their own customers.

I hold capitalism with a deep fondness, but I think that's largely because my formative years were in better times. For people who've never known any capitalism except for the mess we currently have? It's quite to see how they can think to themselves that anything must better.

Not at all. Capitalism only exists as a product of the state, which acts as a guarantor of individual private property rights. It would not be able to survive without the laws and law enforcement of a sovereign with a monopoly on the use of force.