This discussion perplexes me a bit, because I've never felt unsafe while touring.
I've travelled extensively with my two motorcycles (over 200,000 km on my ST1100 in Europe, and ST1300 in North America). In Europe I've toured every country west of Iran, including most of North Africa, and never felt personally unsafe, or been overly concerned about theft of the motorcycle. I don't camp, I stay at motels, inexpensive (but not bottom end) hotels, or pensions.
So far as motorcycle theft is concerned, I don't think that STs are a very attractive target for thieves. Occasionally I might be concerned about someone fooling around with the motorcycle while I am sleeping - if that is the case, I just ask if I can park it near the front office area, which is usually monitored by video. Most of the time, that results in the motel operator offering to let me put it in a garage or other enclosed area that is out of sight. If a country (or region) is dodgy overall, such as the urban parts of Romania, some large cities in northern Poland, or some rust-belt areas of the USA, most hotels and motels in such areas will have lock-up areas for vehicles.
I like to overnight in small towns. They are generally less stressful (and less expensive) than large cities, and more 'secure' in the sense that less goes on (fewer people around).
If I don't like the look of a community, I just keep riding. If worse comes to worst and I can't find a place to stay (within my normal price range) that I feel at ease with, then I just head to the most expensive hotel in town and stay there. That doesn't happen often, but when it does, I just consider the high price for that night to be, in effect, an insurance premium.
My 2?.
Michael