I don't personally think their negative reactions are because of the redhead gene but because of how people single them out, etc.
People blame normal human reactions to situations on
'having red hair'...and so it gets blown out of proportion and they're typecast as 'how they are'. 
IF a brunette or blonde gets angry it's okay, but if a redhead gets angry then it's because of their 'redhead temper'...baloney!...
(But that's just me...)
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I'm a redhead
I, being a redhead, agree with SOME of those characteristics. I am hot tempered, opinionated and a strong leader. However, I have friends that are red ...
Just like regular people
I've definitely got a few of the redhead stereotypes -- temper, politically strong, adventurous, gregarious, original, etc.; but I also know a few redheads ...
Ravishing Redhead Riddled with Rage
I would agree that redheads often tend to be more passionate than others, but they do not necessarily have worse tempers. I am a redhead and am not irascible....
Temper, Temper, Temper!
Well, I have 4 children: a brunette, 2 blondes and a redhead. My sweet little red head has the worst temper, and she isn't old enough to be teased about ...
I disagree
Redheads are normal people and just because they have red hair or more freckles does not make them any different that other human beings. I honestly would ...
Snobs
I am 24 years old and live in a small town. One woman I work with whom I am very close to said all her life in school all the redheads were very snobby ...
Two myths I think are true
As a Redhead, with a Redhead Sister, a Redheaded Son, and Redhead Niece and Nephew, I can tell you that Redheaded women have a nasty mean streak and temper....
Strong willed red head
My 6-year-old red head is definitely different from other kids. She is very strong willed and very curious. She doesn't just take "because I said so"...
Redhead temperament
My name is Katrina Sutton and I am a natural redhead. I do tend to be a little more vocal when I get upset, but I know many other people who are far more ...
I'm a quiet redhead
I think it depends on the person just like everyone else. Some redheads are loud and crazy and others like me are quiet and pretty much are quiet. Redheads ...
A "fiery" opinion from a ginger
I am an 18-year-old natural redhead with very long, very heavy, and very straight red hair, and that is the FIRST thing ANYONE will point out when they ...
I'm a redhead!!!!
I do not believe that redheads have a worse temper than say a blonde or brunette.
From a Redhead
"I think it's all a bunch of baloney (I'd say the other but it's a bit too strong) about redheads being mad just because of their tempers that come with ...
maybe some truth
I've being married to a redhead for 18 years, and my best friend has been married to one for 15, and my observations indicate that most of the stereotypes ...
From Scottish redhead - Sharon
I am a redhead, and I think I am quieter rather than fiery due to the attention my hair gets. I am very trustworthy, kind and charitable, but people seem ...
Redheaded and proud
I think as a group redheads tend to be more passionate and fiery than standard blondes and brunettes. But rather than get offended by this, why not celebrate ...
Wish I was redhead
I love redheads. They're so pretty! In fact, I am an avid writer (I'm 12, so only write stuff for school or for leisure), but a lot of my main characters ...
Redheads are elitists.
Because we get that we are rare. We've been hearing it our whole lives. As we get older, past the teenage years of wanting to fit in and be like everyone ...
Haha
I'm just saying some redheaded girls are really "moody"
Redheads are Monsters.
Hi,
My name is Lisa and I was verbally attacked by a redheaded boy. This is a serious issue and it all stems from the flaming red of his hair. It is ...
Imma redhead
Temper well.....I'm a redhead & my temper is pretty good, but if you do tick me off people usually get scared outa their sh**.
A red-haired girl
I'm a red-haired girl! Cower in fear of my mighty redness! RAWR!:
-- 7 Positive Stereotypes of Redheads - alluring, passionate, original, sexually aggressive,...
Just a student
"I'd love to have my hair red. I live in Italy and I can say that here in Italy there are many people (mostly women) who dye their hair red because it'...
Red head!!!
I'm a red headed male and I think its all bull. Most red heads wouldn't get angry if you just wouldn't point out the fact that we have red hair. I mean ...
Lies !
I'm not trying to fight in any way but it is just kind of silly. All people have anger problems and red heads do as well. But just because their hair is ...
Sidney (redhead)
I'm a redhead and people love my hair, but they also get very intimidated by it. They are usually careful not to piss me off. My temper has absolutely ...
Unlikely
Since red-haired people are so rare that those with emotional problems, a bad God-like temper, and/or promiscuous are dark-haired people. Why? Because ...
I'm a redhead
I have to say I DO have a fiery temper and I am very stubborn! I like to be original and I get mad if i don't get my way.