The real reason for the 2nd is to legit kill tyrants like Trump if he tries to illegally stay in power and protect vulnerable minorities like LGBTQ+ communities.
The problem is the Democrats have been successfully making guns scary to you, and now racist white Christofacists and cops maintain the monopoly on violence, so if you wanted to protest they can simply scare you away with threats (and sometimes actual) violence and because you are a toothless bitch you cant fight back without certain and pointless death.