The liberty to use illegal drugs?
Or the liberty to vote regardless of competence?
The founders had both competence and responsibility requirements to vote. It is no encroachment of liberty to say that criminals, the mentally incompetent, wards of the state, etc. lack the wherewithal to choose the nation’s leadership. An habitual drug user doesn’t need to be involved in the voting process. This ‘egalitie’ notion belongs to a different revolution.