It's wonderful that you're going to be the spokesperson for knitting with your article! I'm sure you'll do us all proud!
I'd suggest that you focus on the benefits of the knitters' art - comfort, beauty and warmth. Maybe how putting on a sweater (or socks, etc.) that someone has hand knit for you is like wearing a hug as much as wearing the garment!
I don't think there can be such a thing as too much comfort in the world and knitters, in their loving generosity, have provided so much comfort over centuries. Maybe by celebrating that, more will reach to discover the incredible art of knitting.
But whatever you write, please let us know when and where it's published so we can celebrate with you!
Happy knitting! (and writing!)