The person I was replying to implied that if we don't do things the way he thinks it should be done, we might end sick or dead. And to say STFU and except my wisdom as pure gold is also ill mannered and unkind.

Lots of things are ill mannered or unkind yet have little in common with a protection racket. His point is that people are going to engage in risky behavior regardless and we have the choice to attempt to mitigate the consequences or just stick our hands in the sand.

That is a false choice. Prevention is better than cure. Supporting safe sex or sex in steady relationships seems to work much better so far than his ideas that nothing can be done we should all just chip in.