I see this as proof that we don't really live in a democracy. Most people are anti-genocide but a politician asking for a ceasefire is a fringe position. Most people want a higher minimum wage, but it's considered a fringe position in Washington. Most people want universal healthcare, but it's considered a fringe position.
Biden clearly doesn't give a shit about winning the next election.
It absolutely is. It's not the place to learn the basics obviously, but members need to learn what is expected of them, just like on any other team/organization.
Linus's outbursts absolutely hinder growth. He's lucky that his project has become so important and people will work on it regardless, but he and the Linux kernel would have been better off if he was wasn't driving people away as much as he was.