Finding a good anime shirt in XXXXL feels like a side quest

Why is it so hard to find clothes that fit nowadays??? Every time I find a cool shirt, I get excited for 5 seconds before checking the sizes and realizing they don’t have XXXXL. I’ll see the cutest anime shirt ever and think “I NEED THIS,” but nope. Sizes stop at XL like bigger people don’t exist. I just want to wear my anime merch too, man. Why are the coolest designs always locked behind a size limit?