Why does the cartoonist equate the constitution with the dome of federal building

The cartoonist equates the Constitution with the dome of the Federal Building because like the Constitution, the Federal Building represents the nation. Each pillar beneath the dome of the Federal Building represents a state that comprises of the Nation.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.