Usually the word "phobia" is attached to either a fear(arachnophobia) or hatred of an ideology or something someone can't control (race or religion).

By implying not loving and accepting fat people is bigoted, overweight people are implying it's out of their control and you're discriminating against them based on variables they can't control.

This is a lie, the vast majority of overweight people can control their weight. Just remember it's their CHOICE to be fat, just like a drug addict chooses to ruin their health. Being fat is not healthy and should not be accepted.