Not being extremely mobile or having chronic pain does not require you to eat more calories than you burn. I have a torn disc and take nerve meds so I obviously don't lift weights or run like I used to, but Im allowed to moderate my calorie intake.

Age and a slowing metabolism are more pernicious, but even those things don't "force you to eat more calories than you need". Nothing is forcing anybody to do that.

Just because something is harder to do, doesn't mean not doing it is okay. Overeating when overweight is abuse, full stop.

There are people that have a harder time quitting smoking, there are people that struggle not to cut themselves.

Nobody should look at an 8 year old with a cigarette and say "it's probably just genetic." Nobody should look at a junkie passed out in an alley and say "yasss, they're just living their truth!" Nobody should be incensed when they go a hospital complaining about abdominal pain and the doctor recommends they remove a piece of rebar they fell on.

But I never brought up the idea that people are being forced to eat more calories; you did.

I explained how medical conditions, health, and mobility are intertwined with calorie intake and expenditure and that it's a common problem.

Have you tried recumbent bicycles? they are a lot easier on my lower back, and there are some real fun designs out there like trikes that could make bicycling a reality again. Or swimming, when I hurt my knees and couldn't run/bicycle without pain, I started swimming laps, and holy cow is that a lot of exercise if you're not used to it.

Additionally, refined sugar is addictive. I know my previous comment might lead you to believe I have no sympathy for wider folks, but I truly do. I've lost 100lbs over a year once. I gain back when I go through periods of depression, and then I force myself to lose weight again. Over last holiday season I was separated from my family and spent it entirely alone. I gained about 25-30 lbs. Since then, I've restricted my calorie intake to around 1200-1500 calories a day, with around an hour of exercise also each day. I've lost ~25 lbs since starting that in March. I know how hard losing weight can be. I'm also a (former) addict, so I know how hard quitting something that's ubiquitous throughout society can be (alcohol). But it can be done. Sugar is addictive just like alcohol is, which is why Jenny Craig modeled her fitness groups after AA.

The problem is that losing weight is uncomfortable at first. You're hungry because your stomach is all stretched out, despite taking in enough calories for the day. It takes time for your stomach to shrink to the proper size, so for the first couple weeks, you'll be eating all your body needs, but it will feel like you're not. and it's uncomfortable. Weigh this discomfort against all the discomfort that being overweight has constantly provided, and decide which one you'd rather live through. The temporary discomfort of feeling hungry and not knowing what to do with your hands after you're done eating for the day (and only for the first couple weeks of dieting), or the constant discomfort all over your body and in your own mind, every day that you're overweight.

You don't have to exercise to lose weight, you don't even have to drastically change your diet.

Eat. Less.

You can lose weight on a diet of pizza, donuts and laying on the couch if you simply eat less calories than you burn.

You quite frankly sound like one of the many enablers that wants to make every excuse possible about why it's impossible to lose weight rather than taking responsibility for the countless poor eating decisions that lead to obesity. No one is born fat and no one wakes up fat, take responsibility.