Cat food is food specifically formulated and designed for consumption by cats. As obligate carnivores, cats have specific requirements for their dietary nutrients, namely nutrients found only in meat or synthesised, such as taurine and Vitamin A.
Hey look, your Wikipedia link says the nutrients cats need from meat can be synthesised in literally the second sentence.
Vegetarian or vegan cat food has been available for many years, and is targeted primarily at vegan and vegetarian pet owners. While a small percentage of owners choose such a diet based on its perceived health benefits, the majority do so due to ethical concerns, such as about the large environmental impacts of animal agriculture.
Sure, Vitamin A and Taurine can easily be manufactured, but that's not all a cat needs, and there are several necessary proteins that are just too expensive to manufacture at the scale needed for animal feed. but go ahead with your wikipedia scholarship, I'm sure you'll go far in life on that I'm sure.
You also put have the thing where it says they are obligate carnivores in the second sentence of the first paragraph that is cited. I did NOT make those claims just provided you with links for further reading.
Edit: spelling and grammar
It sounds like you aren't very assured of the validity of your sources in backing up your claims. If you don't believe in your own sources, why are you so confident in your opinions?
Hey look, your Wikipedia link says the nutrients cats need from meat can be synthesised in literally the second sentence.
This is what I was referring to.
I wasn't making an argument either way. You asked for someone to help you with your homework and I gave you a place to start with the understanding that you were going to apply critical thinking and check source material after being shown a direction.
You want to bitch about having to think and do work? Stop getting into these types of discussions. I made no claims as to validity just that a quick search revealed many sources and articles that had info you were looking for.
Edit: spelling and grammar.
Imma gonna need you to cite your source.
Edit: you completely changed your comment. Click reveals.
Edit: I only changed my comment after you removed your Wikipedia link. I was updating my comment to an appropriate response to your most current edit.