How come most videogame protags are either dumb or just average in terms of intelligence?

Because you're starting with a false premise, at which you arrived due to your feeble-mindedness.

More what

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>"Haha! I'm far too intelligent to play video games like the rest of those sheeples. A true intellect like myself is better suited for shitposting on Yea Forums..."

More like this?

Carpe Noctem,

My IQ is a meager 132.
I only service my penis with a Tenga Spiral.

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