A person stands in court accused of murder.

The defendant says:

“I am not guilty. And i can prove this with evidence.”

The prosecution, refusing to engage with the evidence, simply says:

“You do realize what you just did is murder denial. You just think murder denial is good and correct.”

it’s hard for me not to get the last word too (i feel like bourgeois social media really incentivizes this), but yeah the best thing to do here is obviously to just not engage. there’s no point in arguing/debating with someone if you don’t have enough points of unity to actually synthesize both of your viewpoints and come to some sort of an agreement.