The only reason humans are able to make any kind of sense of the world is because we don't deal with the world in all its complexity. No definite assertion holds up forever. You can find three or four legged cats. Cats have four legs', in the normal sense, the normal use of the word. Less violence is better than more violence, it's almost built into the meaning of the word 'violence'.
Definitions are important.
It is important to know what we're talking about, and that we're talking about the same thing. But at some point there is a way of slipping from careful definition of concepts into a diversion. If you can't afford or can barely afford basic necessities, you're poor. But what constitutes a basic necessity It is clear that DINI wanted to steer the discussion away from taxes and towards an endless game of definition. Sometimes it is sufficient to point this out.