They have largely disassociated themselves from this wicked world. I don't necessarily blame them. However, I believe that Jesus would want them to try and save others. I'll be glad when this world is gone and we are ruled by Christ.
Could you explain this a little more? I'm not sure I understand what you're getting at?
I don't think they disassociated from the world. They do not embrace technology like we do but they still interact with the world. My Amish neighbors sell goods like vegetables, maple syrup, honey, blankets & quilts, baskets, lumber, sheet steel, tarps, seed, feed, grain, and more.
What they primarily avoid is the electricity and self-propelled machinery. No electricity means no conveniences like appliances, lights, running water, cell phones, entertainment systems, etc. No self-propelled machinery means they do a lot more manual labor, use animal power, or adapt a fixed gasoline engine to drive mechanical equipment like sawmills and sheet steel forming.
I think I understand what you're getting at with the trying to save others part. You're correct that they do not go out of their way to make a concerted effort to share the gospel with what they refer to as the "English." But then, look around our churches and see what effort we are making. We live lives embracing sinful behaviors like sexual promiscuity, sex outside of marriage, homosexual behavior, excessive drinking, lying and cheating for personal gain, and so forth as if going to church service on Sunday makes up for it. This is how we behave despite 65% of us identifying ourselves as Christians. Our behavior leaves plenty of room for improvement too.