ask any doctor, being overweight is unhealthy.

I'm not saying we should be assholes to fat people but we should still teach kids that being overweight is unhealthy

You can get the rough strokes from looks. Blood tests give you more specific information on what is wrong, if anything.

If your eyeballs are missing, I can make an assumption that your vision isn't great just by looking at you. That's not a moral judgement.

Doesn't mean blood tests are useless, and in fact it means we have some idea where to start investigating a potential health problem.

Yes, I agree that there's bias against folks who are overweight, and also that there's a range of risk associated with being overweight. It's pretty clear, however, that obesity is a health concern that we should take seriously. If someone smokes five pack of cigs a day, I'm going to make an assumption about their lung health. There's always outliers that live to 100 smoking and not doing exercise, but it would be a shit doctor if they didn't tell folks not to follow their example.

Some of the fat people I've worked with were so much more hard working than others. But on other hand some customers I've dealt with were the worst customers. There was a notorious mother daughter duo that my co workers labeled the "Thunder Cunts". The sad part is they had kids that probably.lived a life of hell.