"I think this game is a bit mirroring a true nature of people." < You are so right, there are all kinds of people here, exactly like in the real world, and as here there is no law enforcement or police, the griefing and killing is only limited by the amount of time and work that each player dedicates to safety.
Players that like to do nature belief kind of tasks there are not much because it requires a lot of time and many consider them boring, and I see you manage them well. You would be wanted in a nice village because this is the kind of dedication and work that a village allways needs.
Maybe your best option is to get a nice village to live in, where someone else does the bwalling that you appear to not like doing and leave behind, but is very much needed to have some safety. Safety not only requires bwalls built, they need to be checked every day and also land near to cities have to be cleaned up of trees and stones.
The best part of getting to live in a village is that you will have people to talk to and boredom is less likely to happen and the game turns to be so much interesting because you learn a lot from other peoples doings.
Of course it has a down side, not all villages are nice and caring of their members so it is not easy to find a nice one, and sometimes fellow villagers requirements are not something we want to be up to.
Edit: I forgot, you can store your valuables in alts. That is what almost everyone does, even living in villages.