That said, I do not think it is right to try to guilt people into using things they do not want to use because you think it could possibly aid your health
The key point for herd immunity is epidemiological - keep resistance high so that most people will never encounter the bad pathogen even if they may be unusually weak against it. That doesn't apply to bacteria that are already prevalent everywhere and known to be less bad than other bacteria they're likely to replace.
What we're talking about here is different, it's a risk which applies to a small minority of specific individuals.