I am not so sure about this - it clicked with me - and I am overweight but wish I was not.
It helped me take a hard look at my mortality.
Being overweight is similar to other high risk activities.
People want to believe they will be part of the very small percentage of people that can be large but live long.
While going back and forth on that, they have the heart attack and the issue is settled.
Would the statement “You are driving on the freeway at 120 miles per hour and should slow down.” be “speed shaming” and therefore rejected by the PC culture?
I do not want to provoke a negative reaction and do not know your situation’s details but, it might not be a good idea to allow a PC culture backlash (whether against “fat shaming” or “speed shaming”) to take your eyes off of the prize (the root cause you might want to fix).