Earlier quoted context omitted.
It's dismissive because most of the requests open source developers get need to be dismissed. " Where can I send some cash for your hard work " is much rarer than " Here's my very complex edge use case that I need to support ASAP, I think it's quite shameful you don't support this already must not take you more than 5 minutes, come on people do it already my clients are waiting ".
see, that's the problem, you immediately jump to a combative stance + assume the current maintainer is always right, which is exactly how the situations i presented happen in the first place
You just don't get a vote, there is no objective truth to settle disputes when it comes to someone else's work and projects. You can stop using the work or fork it, perhaps alongside other like minded users and contributors, crating a viable split.