The only way to do that is to never collaborate with anyone else. I hope he'll be someday able to process what happened, why and reach appropriate conclusions. Software development is a social activity, especially with relatively high-visibility projects like Asahi, and it comes with just as usual burden of social troubles as any other kind of social activity.
Yes.
> The only way to do that is to never collaborate with anyone else.
Not necessarily. You can also treat project politics and social skills like any other technical skills that you need on your team like network engineering or database optimization.
If you can find trusted collaborators with those social and political skills, you can make a lot of things happen without necessarily being very good at it yourself.
Team building has a lot of parallels with building a full stack technology. Or building a sports team.
The real answer is to either learn these skills or, as you suggest, delegate them. Hoping to find something that doesn't involve "all this mess" at all will be fruitless.