Competition usually turns into collusion and consolidation.
https://www.theguardian.com/technology/2014/apr/24/apple-goo...
And still people trust management...
The automovotive market used to have garage based startups a long time ago. It used to have fierce competition and workers could get pay raises without unions.
Then gradually everything fell under 3 big companies, workers fought the concentration of market power by unionizing (and lost) and for decades there was just the big 3.
It's not even a question of if or even who tech will consolidate under any more - it will be someone who is currwently a household name. It is when.
It's coming.