awesome comment brother,, THANK YOu ,, im really feeling your passion and understanding of what this is all about..
You ask some proper good questions here, let me start with the easier ones first!

1. Earthships are basically armageddon proof! That is to say, when built according to the global model approach, they will withstand earthquakes, fire, and any kind of winds.. Earthship Karuna is something of an unusual design, and is not something i would ever repeat! It performs incredibly well where it is situated and has endured many cyclones and massive huge storms as well as bi yearly monsoons with almost NO issue.. except some minor leaks due to the crazy roof design i used.. Normally an Earthship will be partly buried and bermed up, and so it is protected by several feet of dirt.. and the roof is usually made of super strong materials that can withstand whatever comes it way.. they are very aerodynamic the way they are positioned and placed partly underground.. Earthships are without doubt the strongest building i have ever come across. If you drove a car at the walls, the car would be destroyed and bounce off due to the massive load bearing tyre walls.. they are indestructible and will last 1000's of years.. way stronger than concrete or stone walls!

Interestingly, when a tonne of snow falls on the roof, there is not only no issue with strength, but the roof will have the solar hot water heating pipes embedded within it.. This means that you melt the snow (using no energy or power, just the efficiency of a solar hot water heating system).. that snow melt then funnels into the underground cisterns and is used in the home. You can read / see more on that on one of my earthship biotecture transcribed posts:
https://steempeak.com/ecotrain/@eco-alex/earthship-biotecture-transcribed-session-2-part-1-water-how-to-size-your-roof-choosing-the-right-materials-for-water-catchment

The question about the community and who lives within it is so important! It is a tough one, but i do have some strong feelings about it. The first point is that this community needs to be as diverse as possible, with people from the widest range of cultures and backgrounds as possible.

Second is that non violent communication would be a critical and taught part of the community. It is the most important part of a successful community and it would be instilled in everyone through workshops and classes for all.. Most people dont understand what non violent communication means.. I have written a few posts about it, its REALLY amazing when you understand it,, if you are interested please check this post out, and dont miss the video in there, which changed my view of communication entirely!

https://steemit.com/ecotrain/@eco-alex/probably-the-best-parenting-advice-you-ll-read-don-t-say-no-never-praise-complement-or-reward-no-demands-or-punishments-the-real

One more thing that is important to mention is that i feel that most peoples bad behaviours are a direct result of being oppressed and having to live in a system that is predatory and pretty evil.. Whilst it might sound a bit eutopic, it is my belief that when you gift someone a free life, help them make a home without charging them for it, and bring them into a healthy community who support them and respect them, most of the 'bad behaviours' will vanish. I have worked with delinquent children in a special school, these kids were out of control and had NO respect for the teachers, they were properly naught rude kids.. BUT i got on GREAT with them.. i gave them respect, spoke to them on their level, didn't judge them, and gave them time and love .. However corny it may sound, the power of love is quite incredible and can deal with 99% of the problems with people..

SO, having said all that, THERE IS ALWAYS ONE! and i think when there is a person who is clearly mentally ill or causing severe disruption to the entire community, and it cant be resolved, then as a last resort i would defiantly support them being removed from the community.. I have dealt with a woman who was FULLY power bipolar and would threatened to kill me and all the guest and chase people with sticks trying to beat them just for wearing the wrong clothes!! She was very ill mentally, and we managed to get her a home in Nepal where she is now in a better situation..

THANKS for the great comment again! <3 xx