Democratic Politicians and their unrepresentative sluggishness and careerism a US Brexit is required

Not surprisingly, many have criticised Politicians  consistent caution and refractoriness (stubborn mulish). Complaints about politicians  unrepresentativeness and careerism are perennial. 

Consequently, some of the most important moments in British political history (see recent phenomenal rise of Nigel Farage's  Brexit party in the recent European Elections)
a successful insurrections against parliamentary sluggishness over Brexit