Let's all point and laugh at the guy who thinks this is the reality of modern-day capitalism, and not just the idealized version of it found only in libertarian wet dreams. Cronyism runs rampant, the market is fixed (rigged) in several ways, and no corporation has been tried on anti-trust violations since Microsoft, the one and only time it has happened in my lifetime. Certain people love to brag about all the "innovation" and "variation" that capitalism brings with it, but the truth is that one or two megacorps own all fifteen brands of any given product you can buy at the grocery store. We only get the illusion of choice, just as we often only get the illusion of freedom.
I hope you realise that brands under the same umbrella *also* compete with each other. Heck, individual departments compete with each other.
For the record, the communist solution to the supposed problem of having too little choice (in the presence of an absolute abundance of choice) is to remove choice. Rather than have corporations competing with each other for the customer's favour, the communist solution is to remove competition altogether. I don't know how communism fanboys imagine actual communism looks like, but I've seen how it *actually* looks like - it's a bit like this:
You go into a store, you stand in a queue (since of course there's rationing, rationing always sets in eventually), you go to the dairy counter and you buy yoghurt made by the yoghurt brand, endorsed by the Party. That's it. This is on the proviso that there's anything on the shelf at all - in the final death throes of the system all that was available were matches and vinegar. That's the actual, real life result of the system. For God's sake, my elder sisters remember clear as day standing in the queue early in the morning with a string around their necks to buy toilet paper for the rest of the week - "grab as much as you can while you can, who knows when it'll be back in stock". This wasn't 200 years ago, merely 30-odd, we're not goldfish, our memory does go that far back.
Spare me the nonsense about lack of choice on the free market - if you want to create a competing brand, go do it. Make some cereal, put it in a non-gmo gluten-free cruelty-free biodegradable organic cardboard box and some hippy dippy dummy will buy it, it's not *that* hard. There are plenty of anti-corpo suckers ready for you to cater to them in a way a corporation cannot.
Now that's just a bad argument. What killed blockbuster was failure to catch up with the times. They didn't really follow up when things started changing to streaming only ,and rentals were not much of a thing. And you want to know what killed them? Amazon, Netflix, etc. And they were extremely wrong.
Netflix, the wee baby startup, which began as a rental service, killed Blockbuster, an industry giant that chose not to innovate. Thank you for reinforcing my point.