The cheese is 'real'?

I have been long familiar with cheese products that are only partially real cheese. I worked for a nation-wide pizza outfit back in the late '80's and found out then that the cheese they put on their pizza is a 'cheese food' meaning only about 50% of the cheese is real cheese and the rest is emulsifiers, fillers and other manufactured food to cut the cost down and create a better melting cheese on top of one of America's favorite foods.
So, needless to say, I make my own pizza at least once a week and it has real cheese on it - aged, raw milk cheddar cheese to be exact.

But, while traveling last week, I was delayed in a huge airport and found myself waiting 8 hours for a connecting flight. My supply of my own food was exhausted, I was hungry so I went to a pizza place in the airport and took my chances. Not before I entered into a very spirited conversation with one of the workers, possibly the franchise manager, and it goes like this:

Caroline - Is your cheese real on your pizza?

Pizza Guy - What?

Caroline - Real, 100% pure cheese?

Pizza Guy - Why do you ask?

Caroline - Well....I made pizzas about 20 years ago and I know that most cheese on pizza's today are only partially real...

Pizza Guy - (with a perplexed look) No, it's cheese, it's real. I know.

Caroline - Oh (looking tired and hungry).

Pizza Guy - It's real, it's our cheese, IT COMES WITH OUR NAME ON IT! It's real.

Caroline - (thinking finally that even asking was a lost cause in the first place, let's it go, shrugs and orders a piece of plain cheese pizza).

"It comes with our name on it", OK, that's a great answer. He hasn't a clue for sure.
Just because the restaurant chain has their own labeled cheese means nothing, absolutely nothing. Our food today is so tainted and messed around with we don't know whether we are coming or going. What I should have done is suggested he look at the list of ingredients on his cheese and then figured it out himself if it is real or not. Cheese should have only a couple of ingredients, milk, salt, enzymes/rennet. That's it.

I must have walked around for at least an hour chuckling about that interaction. What really is real nowadays?