Will you tell [your children] that, in a state-run economy, hard work may still be applauded, but that it will no longer be rewarded?
Will you explain that whatever their personal beliefs, tax-funded institutions will require them to imbibe and repeat the slogans of the left, and that, should they differ, they cannot have a career in education, medicine or television unless they keep their mouths shut?
Note the lack of facts. I think Mamet might define "state-run economy" as "an economy in which David Mamet has to pay slightly larger taxes" and that whole second paragraph appears to be about how Mamet is losing work now that he's gone crazy. But it's the last paragraph that really says it all to me:
Please remember that we have the secret ballot and, should you, on reflection, vote in secret for a candidate you would not endorse in public, you will not be alone.
I like to think that Romney would be touched by this show of secret support. After all, he's kept most of his policies, his tax returns, and his budget a secret.