[Alex3917]

Well the question is whether drugs overall improve people's life expectancy, not whether some specific class of drug can lengthen people's lives. Some drugs make people live longer, but other drugs decrease life expectancy.

And even with antibiotics in specific, they save lives, but they also kill among the most people of any class of drug. They're a clear win if you're a burn victim or something, but most situations that are less acute either go away on their own or else were treated successfully with plant-based antibiotics. Despite what the pharma industry would have you believe, there's no law of the universe that decrees that fungi-based antiobiotics should be inherently more effective that plant-based antibiotics, the main reason the former are used today is just that they're less expensive to mass produce.