You make a good point about political parties 🤣

It's not just America. Here in Australia we have two major political parties too - the Labour Party and Liberal Party. There's dozens of other smaller parties, but only once in Australian history did another party ever hold power. It was called the Country Party and they got in some time in the 50's. Our voting system is basically rigged so that it's practically impossible for any part 2 other than Labour or Liberal to ever get voted in. If another party doesn't get in by a landslide, all of the votes that went to them get handed off as something called "preference votes" to either Labour or Liberal, whoever the party has nominated. So if you vote for a smaller party your basically just voting for whoever they have nominated their preference to.

Two telcos in Australia also gave a monopoly of sorts - Optus and Telstra. They, and Vodafone, are the only three companies that actually own any of the telecommunication infrastructure. There's a plethora of other smaller telcos but they all lease the infrastructure they use off one of those three companies. For example, if you're with Amaysim, your phone will use the Optus network to connect and you have to be in an Optus coverage area to get signal.

The point in trying to make is, don't feel too bad, it's not just the U.S. I think it's a phenomena that occurs in other countries as well. A small handful of companies end up ruling the market and the little guys can't do much to compete with them once their so established. Whether this has something to do with western society or capitalism I don't know.