@JPB,
Simple question:
Do you believe this represents the the general understanding and motivation of Republicans and Tea Party members?
A more difficult question (or what should be more difficult): On what basis?
If you do, than we can look to Cynthia McKenna (among others) to reflect the thinking of Democrats and liberals across the nation.
We can spend quite some time and space trading stories about the wild ass comments of individual politicans in both parties.
Why do you ask about "these" people? You know the identity of the person who sent the e-mail.