? Maybe Im missing something, but tech is controlled by a handful of companies - always have been

I guess it depends on what you define as "tech", but the '80s, '90s, and early '00s had an explosion of tiny hardware and software startups. Some even threatened Intel with x86 clones.

It wasn't until the late '90s that NVIDIA was the clear GPU winner, for instance. It had serious competition from 3DFX, ATI, and a bunch of other smaller companies.