Based on... what? Thoughts and prayers? Feelings? Vibes?
I don't know if you looked around but open source is basically unusable for the largest platform in the world, mobile.
The next platform, whatever that is, will also be closed source (maybe VR, once it finally matures...).
LLMs are closed source, is there even 1 (ONE) LLM which is both open source and open weights and publishes its training data and methodology and is also remotely competitive with the frontier lab LLMs?
Consoles are closed source. Appliances are closed source. Embedded devices are closed source.
Even the web is basically closed source. Blobs of encrypted, obfuscated JS used to serve news pages (!).
Maybe I'm looking in the wrong places, but closed source has won.