McDonalds isn't as bad as it used to be tbh, it's reputation is somewhat undeserved these days
There's heaps of unhealthy fast food joints, the difference is the marketing. A Chipotle burrito has over 1000 calories but is perceived as healthy. That's twice the calories in a Big Mac.
Organic is good, responsibly sourced is good, but neither one automatically equals healthiness all by themselves.
Sure people are. Not enough according to you perhaps.
Sugar (not slow carbohydrates), and salts are the two main concerns.