Why do you assume leftist control?
Is there any dispute that the Left firmly controls: education, the Goebbelsmedia, the Deep State, foundations, associations of all stripes, publishing, culture and worst of all -the churches?
Where is the chink in that armor and I am sure you could add more to that depressing list.
It should also be remembered that the CC was composed of dozens of patriots seasoned by the Revolutionary War, practical men. Federal officers, the Society of the Cincinnati, made up the leadership of the pro-Constitutional forces.