It is a contextual thing and it is a non-attacking thing.
It’s always better to give people the benefit of the doubt. Perhaps they are misinformed or ignorant of the pertinent details of a situation. Or based on insufficient information that has come to light that they are not aware of. Yet. There’s any number of non-malicious ways to look at situations.
Then again, sometimes it’s active misinformation at work or even outright trolling.
This is a matter to be reported. Let your mods decide what’s going on there and take action accordingly. This could mean anything from asking for clarification, seeing a cite, or gently guiding through a note how conversations here should go. And if it’s outright trolling, well, they deal with that too.
It’s okay to ask someone for clarification yourself. To ask for a cite on a statement or a claim. Be polite about it. As you would want yourself to be respected in discussions with others, likewise be respectful of them.
If you can’t be respectful of them REPORT IT. Do not attempt to mitigate this yourself.
your humble TubaDiva