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How to recognize and respond to common unfair criticisms made against lgbt people
Recognize what your goals are in addressing these criticisms.
It's a noble goal to want to rid the world of bigotry, but you can't actually change anyone's mind for them. Set the bar too high and you'll probably end up disappointed or burned out.
An alternative option for a goal would be to let others know that not everyone agrees with messages about lgbt people and they have an ally out there. Another could be to at the very least get a bigoted person to begin to question their views.