Advocating elimination of one tax -- or even of one entire category of
tax -- is hardly "radical" in the context of the LP. Heck, even the
"watered down" 2008 LP Platform advocates elimination of all income
taxation, and I (an alleged non-radical) would extend that to include
all taxes on gifts, voluntary exchanges, peaceful production, profits,
interest, dividends, financial assets, and produced capital.
No, what's "radical" is to advocate immediate non-enforcement of all tax
laws, as the pre-2006 LP Platform used to do: "We support ending all
taxation. All criminal and civil sanctions against tax evasion should be
terminated immediately".
I've never heard of an LP candidate who clearly proposed that policy in
front of a general audience -- let alone such a policy getting 45% in a
referendum, or being advocated by a successful gubernatorial candidate.