Without a passport, probably, that’s true, if you contact country officials. But without customs clearance and border security check it can be a criminal offense.
From a legal standpoint the country you're entering wouldn't typically consider that an aggravating circumstance. Lebanon and Turkey aren't responsible for enforcing Japan's laws.
That’s true, but if the refugee status is not confirmed later, it still can be qualified as a criminal offense (that’s the case in Germany and Russia, for example).
> breaking lots of laws in at least three countries
Probably not. Crossing a border without your passport on you tends to be a pretty small offense.