Obesity, skiny, tall, short, unibrow, hairy, flat figure

[A-Man]

You can't be genetically born fat.

Diabetes is one of many syndromes which can directly cause obesity and overweight.

There are even people with thyroid problems where their metabolisms are low that they can't eat a lot or they will get fat quicker but some of them still manage to be at a healthy weight.
Other people use that thyroid issue as an excuse.

Some of those do, but other don't. Surely how fast they gain weight differs from a person to another. There is an extent to how far you can go with a diet.

And then there are just fat lazy people who don't give 2 sh****.
Genetics don't play a role at all in weight.

Of course there are. But like I said, it's not possible to recognize those whom are lazy from the ones who are actually having a health problem associated with it.

It's all about calories in vs calories out.

Not quite. And that's because what you said here:

Some people just burn more naturally through their metabolism and others burn so little.

:P
Even if only 1% of the overweight people are actually ill, I'd rather not be discriminating to ensure I am fair with everybody.