Kraft invented American cheese but Kraft singles are not cheese.
- atomicbooks
Sounds like the argument you're making is that Kraft Singles aren't cheese.
Even if your argument is just that Kraft Singles aren't American cheese, that would be a tough argument to support, as Kraft Singles fit the definition and culinary use of American cheese exactly.
Calcium phosphate and sodium phosphate are perfectly safe unless consumed in quantities that would be unreasonable to achieve by just eating food.