If I have a choice between fixing an issue locally vs interacting with a large upstream project - who tend to always have a Person B (someone who isn't equipped to handle the subject but will nontheless form a premature opinion and attack anyone who challenges it), then I ALWAYS fix it locally because it takes more effort to convince Person B. Sometimes they silently fix it in a couple of years later, other times another project comes in and renders their project (and my local fix) obsolete.

Perhaps projects should have policies and codes of conduct that protect them against this type of harmful behavior.