Dear Steve,
"The best place to start" is where any individual or group wishes to
start in their anti-tax activism.
For example, the American Liberty Foundation (see below), in their
"Downsize DC" project is starting with the Federal income tax, and I'm
supporting it. OTOH, last November Carla Howell and Michael Cloud
received 45% of the Massachusetts vote for their initiative to abolish
the state income tax, and I contributed to them also.
Wherever you wish to start, I suggest you place all your efforts
there, rather than in trying to convince others you're right in your
starting place and they're wrong in theirs.
"Let 1,000 flowers bloom."
Best, Michael