Cool! An intelligent reply (from an expected intelligent source, Slart!

). Some very valid points there, but taken from a certain level of the onion as I like to say. Probably the most profound thing I've learned over the last 20 years is just how much everything is defined by the opinions of others. Ok, a lot of this actually started when I began learning NLP where one of the main tenets is that everything that happens is simply an event. It's how we respond to that event that matters.
While the widely accepted opinion of bigotry definitely includes the examples you have noted, I couldn't help but notice that it can also reflect back on those that label some minority group as bigots. To avoid any confusion with any actual cultural, religious or societal contrasts where there's already been a large amount of emotional investment and minds have been made up (the ironic part), I will posit my hypothesis from a more historical point of view.
Long before Bandler and Professor Grinder developed the human behavior models that became NLP, Shakesphere wrote in Hamlet "There is nothing either good or bad, but thinking makes it so." Needless to say, this is the concept that I am alluding to. Let's take the example from the Dark Ages. The majority of the people living at the time either believed, or were told to believe, that the world was flat despite multiple ways known thousands of years previously to the contrary. It would be very easy to assume that anyone who thought it was round could be chastised as a bigot per the definition of the word. Here's that definition again:
The English noun bigot is a term used to describe a prejudiced or closed-minded person, especially one who is intolerant or hostile towards different social groups (e.g. racial or religious groups), and especially one whose own beliefs are perceived as unreasonable or excessively narrow-minded, superstitious, or hypocritical.
The point here is that, in this case, it's actually the majority that were prejudiced and closed-minded, plus there was extreme intolerance and hostility (having a "the Earth is round" view could get you imprisoned, exiled or killed). The prime backers of the flat Earth idea were the Church (which brings in the religious element) and it definitely caused separation in social groups (albeit without any racial implications that I know of). In this particular example, the minority opinion turned out to be the correct one. Obviously this isn't always the case, but my observation, especially of current events, is that the exact people calling others bigots (at least per the definition written above) could be just as guilty as those they accuse with the huge exception in that they happen to side with the prevailing social consensus of the moment and don't consider that the opposing views have merit.
One final thing to note. I'm NOT saying I don't agree with certain social points a view, I just happen to also see several that, from my long personal journeys and research (requiring a very open mind) are easily identified as a "provided belief" by those more interested in power and control, and not accurate in my opinion. Just because society adds a social stigma and/or legal punishment to something certainly doesn't mean everyone has to believe in its purpose.
A while back I spent a lengthy amount of time contemplating what I would do if I had all the power I needed to enact any change I wanted (at either a world, national or local level - pick one, it doesn't really matter). This grew out of the thought "Instead of complaining about how things are currently being handled, how about coming up with a productive alternate solution?" I eventually realized that there are NO "right" answers, no magic formula and, mostly, there was no way to create and enforce any rules (even if they were "best for everyone") without creating new minorities, providing unearned benefits for some and undeservedly suppressing others. Even worse, they usually ended with me becoming and performing exactly the same as those I would have to replace. Then I grew a bit more.
Most of that pondering occurred at the same "level of the onion" as your rebuttal. Afterwards is when it hit me how none of it really matters. The next level up had me realize that not only is conflict inevitable, it's required because this reality was never meant to be "fair" it is merely a construct for personal learning. Until you walk the path to this point (and I'm sure there are more), my current opinions put me squarely in the target of those who cling on to beliefs that were ingrained in them pretty much from birth. My comment about the word bigotry has less to do with how society is currently using it and more an observation of how the definition is really an oxymoron since the implementation could easily swing 180 degrees depending on a majority of public opinion.