Your description certainly makes logicL sense for smaller species but woldnt that point be moot in larger reptiles, especially anacondas and retics? Theyre either apex or near apex preds in their ecosystems arent they. Well with the exception of man.

There has to be some form of agression in snakes. As they are anmimals and all animals ahve aggression levels. Just comparing human warmongers and pacifists is an example of how aggression permeates throughout the natural world, no?