Why people need assault rifles

I have been struck by the Second Amendment proponents inability to answer the question; "Why do you need an assault rifle?". The question is of course nothing more than a straw man fallacy. One could answer that we have a Bill of Rights not needs. The Constitution does not require that a need must exist before our rights are granted. Another possible answer would be that you need an assault rifle because your adversary has one - and if said adversary was Military or Law Enforcement, theirs would be fully-automatic.

I have yet a third way to answer the question that may be very useful.
If you examine needs, as defined by Maslow, safety is the second-most crucial after our basic needs (food, water, air and shelter). Safety needs include security, stability, and freedom from fear. If, when asked, people explained that they "need" an assault rifle because they feel they lack security and freedom from fear because we live under an ever-increasingly tyrannical Government. This fear and lack of security and safety is exacerbated because the Press has failed their First Amendment responsibilities of holding truth to power.

If we start to answer this question this way, maybe they will be happy to return to talking about our rights.