It very well may be the "easiest" way to lose weight, BUT the decision to change your lifestyle, give up all of your comforts and coping mechanisms, risk a multitude of complications and possible death and choose to be healthy is about the hardest thing you will ever do.
Share with him this.
Statistically speaking, once someone has crossed a 40 bmi, the chance of getting back to a healthy bmi is less than 1%. There are those few, Subway's Jared for example, but that number is crazy low scary. Your brain won't allow you to keep the weight off, it's constantly fighting you!
I explained to my husband (who said the same thing), that this was a line in the sand that I could not move to begin a diet and eat healthy.
Then I took him with me to every appt., etc. and now he's my biggest cheerleader. I probably would have bailed without his support.
They can be turned around. :-)