The reason fat people are so quick to believe that we are unworthy of love and respect is because that’s the only narrative available to us.
Until, if we are lucky enough, we find spaces where fat positive discourse is happening. But please remember how rare it is for people to find that. Casually and explicitly educate those around you about fatphobia. Try to be compassionate for those who have internalized it, and remember that people’s perceptions of your body are not who you are - only you decide that.