you're right, this isn't an image macro.

Its not a fucking meme either.

Colloquial definitions are not prescribed.

A TikTok screenshot is just documentation of someone else's context.

By any modern definition a meme requires some element of remix, juxtaposition, or intentional humor that turns raw content into a cultural shorthand

This isn't that.

By your definition, a stop sign is a meme. Congrats, you've made the modern word useless.