No if the aircraft is allowed to fly there it is nagigable airspace. You will find definitions of 500 feet as the lower limits, but that is not true. It can be higher near towers and down to the ground in rural areas.

Ok you are allowed to fly as low as you want to in rural areas, and in many of these areas controlled airspace is down to the ground. Are you contending that flying onto someone else's property, landing, and doing nothing else is not trespassing?

Would flying under 500 feet not be trespassing? What if the plane was noisy and caused a prize horse to jump and break its leg. Does that mean the owner cannot sue because you are in an aircraft?

Ireally don't know what you are claiming other than you don't understand that non navigable is the opposite of navigable.