Okay, think about this in context, friend.
Notice how I used the word “everyone” twice.
It’s being used to refer to the same group of people both times.
Now let’s look at the 2nd usage:
Pop quiz: Now, are you calling literally everyone a liar, or lacking in reading comprehension?
Hm?
No, you are calling those of a specific opinion who are in this thread debating the viability of adding dual spec that.
Therefore, a normal person with good reading comprehension would be able to easily make the inference here, that “everyone” means exactly what the context strictly implies, that it’s “everyone” that your nasty attitude is aimed at.
I really hate that I had to literally break down English for you. Must you be this way?