Question

In the last line of this excerpt from "Totally like whatever, you know?," the speaker alters his syntax for what purpose?

"I have nothing personally invested in my own opinions, okay?
I'm just inviting you to join me in my uncertainty?
What has happened to our conviction?"

The speaker is not inarticulate, as he pretends to be, and now he offers evidence of his ability to speak with conviction.
The speaker is not convicted about this unconventional manner of speaking, and he sees no reason to continue with speaking this way.
The speaker does not have a strong command of the lang