Originally Posted by
Kohl
It actually is exactly a fallacy: It's called the Slippery Slope fallacy
"You said that if we allow A to happen, then Z will eventually happen too, therefore A should not happen.
The problem with this reasoning is that it avoids engaging with the issue at hand, and instead shifts attention to extreme hypotheticals. Because no proof is presented to show that such extreme hypotheticals will in fact occur, this fallacy has the form of an appeal to emotion fallacy by leveraging fear. In effect the argument at hand is unfairly tainted by unsubstantiated conjecture."
The definition of a Strawman fallacy as pointed out to you earlier:
"Strawman
You misrepresented someone's argument to make it easier to attack.
By exaggerating, misrepresenting, or just completely fabricating someone's argument, it's much easier to present your own position as being reasonable, but this kind of dishonesty serves to undermine honest rational debate."
(quoted text is not mine, it is quoted, and while it uses the word "you" it is not directly addressing any individual herein)