Nobody is forcing you to do anything and quite frankly, with no offense, it doesn't matter to us as it is not our health.
Just as a tip, for your health and to clear up misinformation, it is all about what you are used to.
If you start eating different types of food, your tastes will shift. Even for healthy food.
Exercise may feel like zero fun when you start, I know I have been there.
As you get in better shape you come to enjoy it.
As the OP mentioned, you don't have to do anything dramatic.
Minimize the # of your calories in the form of refined flour products and sweeteners. Get out and start taking a walk every day.
Those things done constituently will make measurable results.