You can’t claim to be a (niche/product) girl/guy if your (niche/product) is (bad).
Demonstrate product.
Call to action.
Example:
You can’t claim to be a car guy if your tires look like crap.
Look how easily I took these tires from looking like this, to THIS!
This stuff is on sale right now, they’ve got free shipping and I’ve got a link below.
You can’t claim to have a clean house if you’re still cleaning your windows like this.
You can claim to care about your health if you’re not getting all 117 recommended nutrients per day like you’re supposed to.
You can’t claim to care about your sleep if you’re still sleeping on one of these old pillows.