Regardless of their "species", these scenarios are all manageable under a free societies, system of arbitration that would normally apply to humans. Colossal could counter-sue the drunk driver. The apes could sue the individual trespasser but not a collective of humans. The r selected aliens are an invasion and could be treated as such. The ants that seek asylum would be seeking it from individuals not a state and assuming, the Ants being alien do not participate in the accepted arbitration arrangement, they would have no protection or recourse to claim personal property.