Yes that's the compromise we have had to live with. But some countries like Singapore and China are showing it is actually possible to just solve theft so you don't have to deal with your bike being stolen.
No idea, only played in low sec. There you shoot everyone. So it's kinda "safe" - no surprises, you expect everyone to try to kill you. Maybe except your own militia, and that's not always.
But the rule is good. Can't say I always adhere to it, but used to loose a lot of stuff , and thanks to the rule, many wasn't that expensive.
If there's lot of theft and you can't store bike at a secure place - have a cheap bike.