Considering Rügenwalder, one of Germany's largest meat processing companies, managed to pivot to primarily selling veggie meat replacements, and grow their business at that, your conclusion is wrong.
There's definitely a niche for this, and it's large enough to build a multi billion dollar company.
And if it can work in the country that's home to the Currywurst, then it can work everywhere.
There is a niche for it, I'm not saying there's not. All I'm saying is they went about marketing it wrong because they misread the market and targeted the wrong demographic. Meat eaters dont want it, vegetarians don't want it, it's a novelty item, that's your niche.
> Meat eaters dont want it, vegetarians don't want it
But that's obviously wrong, vegetarians and meat eaters are buying it én masse, the product is clearly a success, at least in Germany. And not just once, but repeatedly, again and again.
There's definitely a niche for this, and it's large enough to build a multi billion dollar company.
And if it can work in the country that's home to the Currywurst, then it can work everywhere.