Below is a purely hypothetical conversation, presented here merely as an illustration of a point.
Person A: Makes an assertion.
Me: Oh. What evidence do you have to back that up?
A: It's not my job to educate you.
Myself: Well, if you're not going to present any evidence for your claim, I'm just going to ignore it.
A: ... !! ... But! You need to Listen to [insert demographic] voices!!
I: No I don't.
"It's not my job to educate you" is not an argument.
If someone refuses to present arguments for their claims, they have only themselves to blame, if people ignore the said claims.