But I would never sit down to convince a person who is not a friend. If someone wanted me to do that, I'd expect to charge them for it. So the guys who are doing it for free are either peddling bullshit or they have some other unspecified objective and no one likes that.
Like, screw the whole “artisanal small-batch software” argument—there are massive new systems being written in C every day despite decades of claims that it is an obsolete language doomed to be replaced by better alternatives. Those alternatives caught on in some segments and not in others. Electric cars caught on in some segments and not in others. Steel-and-concrete building construction caught on in some segments and not in others. It’ll be fine.