I recall that the same argument was made against adding same-sex relationships. They went into vanilla though, so that reasoning isn't sufficient to not add something. Plus, which fantasy setting is microcline associated with? If you're going to use an argument it needs to hold as a general case, otherwise it's a cherry picked argument and not valid.
Don't confuse the arguments that bigots make with "logic." Most fantasy settings don't deal with homosexuality for two reasons 1) most people (and authors) aren't gay, and 2) they don't want to make a political statement and mix their work into the shitstorm that is gay rights atm. (w/e your stance on the subject, its still a controversial hot-topic issue).
As far as homosexuality in a fantasy setting? Homosexuality is NOT a new thing, and is simply a part of human nature. No work featuring humans should have homosexuality be "out of place" as it is simply one expression of natural human behavior.
Really? The average member of the public is more aware of asbestos mining than virtually any other mineral in Dwarf Fortress
This is simply not true. Go on, try it. Walk outside and start asking random people where asbestos comes from. Most people know its harmful and that there were lawsuits around it... but the lawsuits were NOT limited to just miners. All sorts of construction workers (not just for buildings but ships and numerous factories as well) and tenants living in buildings insulted with asbestos sued over damages caused by asbestos, or sued to simply remove it. Obama even made a stink about how he did some "Community Organizing" to remove asbestos from a housing project. If anything that is the most recent example of a lawsuit on the general public's mind, and it has NOTHING to do with mining. Even if they know there is mining involved, they probably assume several processes to refine the base mineral are involved. Like plastic, or something else synthetic.
But asbestos is not a fantasy element, it's a real mineral.
You are missing the point. Its a real mineral and easy to create material from the raw ore, but the problem is the connotations surrounding the mineral all firmly place it within the time-frame of "sins of the INDUSTRIAL era" People associate it with this era, and not with the ancient Romans or even a facet of natural geology. As Gavj said, simply having the mineral in game is fine. Its a natural mineral that has existed for eons and will exist for eons after us. Its part of the world. Asbestos however, is a refined product made by man. Its trope is firmly rooted in the Industrial era NOT the fantasy one. People can debate all they want about the properties of vampires and the # of legs a dragon has, but no one is going to question the inclusion of dragons and vampires in this FANTASY setting. Radiation and Radiation poisoning are very real things, but are not considered appropriate for fantasy settings. Imagine if Tolkein claimed that Gollum dug deep into the mountains and found a vein of -very- real uranium, and that by being fascinated by this material and staying near it too long all his hair fell out and he became the shrunken sickly thing we know of today. This would simply feel out of place. while Uranium and radiation poisoning are very real AND natural things, they are not typically associated with fantasy settings- but instead are concerns of the modern world. You cannot ignore your audience when making a work, and the collective audience will not associate asbestos with romans (and those appropriate for dwarves to make) but with Lawsuits that are still going on today.
What people seem to forget is that I am all or adding asbestos into the game... the mineral and technology needed to create it certain fall within DF's setting. However, I simply want "asbestos" to be renamed "dwarven wool/rock cloth" to avoid the connotations associated with asbestos AND as a convenient way to ignore its adverse health effects. I imagine my army of dwarves all clothed in the very minerals they have mined themselves... NOT plant matter like elves, NOT some mundane animal product like silk or leather like humans, but out of ROCKS. Its insanely dwarfy. I simply want "asbestos" to be absorbed into a quirky thing dwarves do, and to abandon all the connotations linking it to lung cancer and lawsuits. Take my Tolkien analogy earlier. Instead of saying Gollum got warped by Uranium or Plutonium is off-putting, but substitute those with "a strange rock, suspiciously warm to the touch and glowing but infused with foul magics/cursed to weaken those that wield it...." and no one cares. Just fold the properties of asbestos into the fantasy setting and rename it something else. Those that know will know, those that don't won't bat an eye.