It's quite simple actually.

Or is it?

Do you take into account that:

• Most processed food are created around the bliss point in order to make it as addictive as possible.
• Fresh food being more expensive and/or more time consuming to prepare than processed alternatives.'
• the existence of food deserts.
• advertising pushing unhealthy and addictive eatings habits down our collective throats with little to no regulations (why not do what we did with alcohol/tobacco in a lot of countries?)
• bad habits formed during childhood such as empty calories used as rewards, etc.

Imho everyone can put the fork down as in everyone can stop smoking or doing any drugs really. It's possible but demands an extra effort that not anyone is able to put in at any given moment (without even taking relapses into account).

To me it really has some "it's your fault you got conned" vibes ^^'