No one said it will "die".

> as long as there are crazy idealists (like me) who put their time into building things for free, and hope that they will make some random persons life a little bit better.

You are only saying this from the perspective of having an employer paying you for everything.

My point is about developers who don't have that and are doing full time "open source" for free which that is not sustainable in the long term. AI will only just make it less worth it for them to maintain open source software as such, unless companies or a substantial amount of other users / developers pay for support.

I have never seen lawyers, mechanics, surgeons and financial advisors ever reduce their profession to free work or advice.