As far as discrimination goes, you shouldn't be overtly hostile to obese people, but at the same time, you shouldn't be bending over backwards to accommodate them. I hear a lot about how obese people are the victim of some medical disorder which is the root of all their obesity. There is likely some truth to that for many people, but the key word is SOME truth. The rest of the truth is likely poor diet and a sedentary lifestyle. Thus, I will be sympathetic to the obese to an extent, but only to the extent that they accept what they are.
People who complain that the obese have to buy two seats on airplanes are correct in that this is discrimination, but the important fact is that the obese should be discriminated against on certain matters due to the unavoidable fact that they weigh more and take up more space. Modern aircraft are not constructed in a manner that can provide for the reasonable accommodation and comfort of the obese and those next to them because companies are best served by accommodating the vast majority instead of the handful of outliers. These realities might make life difficult for the obese, but they have allowed themselves to get to the point where these difficulties apply to them
People who complain that the obese have to buy two seats on airplanes are correct in that this is discrimination, but the important fact is that the obese should be discriminated against on certain matters due to the unavoidable fact that they weigh more and take up more space. Modern aircraft are not constructed in a manner that can provide for the reasonable accommodation and comfort of the obese and those next to them because companies are best served by accommodating the vast majority instead of the handful of outliers. These realities might make life difficult for the obese, but they have allowed themselves to get to the point where these difficulties apply to them