I was curious after reading your comment and searched for sanic meme tshirt in the YouTube app. One result looked highly relevant, posted 4 days ago. It was a short, not a normal video mind you. Titled Official “Sanic” merchandise and having a picture of sanic and some dude’s face. Most of the rest of the results were from different dates, several ranging to years ago. But a lot of those other ones seemed to be about meme sanic as well at least.

I didn’t click on any of them to verify, lest YouTube decides that it should replace my whole YouTube home page with sonic fandom and sanic memes :P

I just put this into YouTube search and got results that contraindicate your claim¹:

> "sanic" the hedgehog

The quotes seem to shut down autocorrect

1: there's nothing that I see about the T-shirt, but the first result is titled "Sanic DA hedgeh0g". I will not be looking at what this video is. Several other results also include the word "sanic" in relation to the hedgehog.