How very capitalist of them.

The Soviet Union had multiple competing suppliers for most things you could think of, down to consumer goods.

capitalism is about the accumulation of capital; competition is not related, but the byproducts of capitalism which can be beneficial to the consumer.

Capital (big C) does everything it can to extinguish competition -- and would, if not for regulation, trust busting, etc. All large companies are trying to be monopolies to the fullest extent possible, and history shows plenty of examples.