What do you call it when a person tries to debate you, but literally everything they said was false, and it makes rebuttal impossible?

Because its like trying to argue with gibberish/nonsense, you can't make counter points when you can't decipher any form of cohesive logic in which to counter.

Is there a word or phrase for this?

Here is an example:

Statement: "We can date fossils by looking at the rate of radioactive decay of isotopes in the rocks."

Nonsense Reply: "Well you're wrong, because complex element siphoning is exponential statistically, which means you can't account for filtering out metallic transitional compounds when carbon dating".

Essentially its meant to sound like intelligent debate, but is just complete nonsense.

I see this sort of thing a lot on here, usually in regards to arguments about relationships, human biology, statistics, success, politics, economics, government systems, religion, sex, stereotypes, or other common gag topics.

What do you do when this sort of verbal diarrhea is forced upon you?
On here when it happens, I just delete their reply, as a debate attempt would serve no useful purpose in that situation.

A lot of these replies are written in such a way that it almost sounds like those story telling AI prompt programs wrote them.

What do you call it when a person tries to debate you, but literally everything they said was false, and it makes rebuttal impossible?
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