Political organizations, or any other organizations with enemies, can NOT simply avoid generating complaints from users. Such complaint systems are often used as DOS attack methods against groups that have enemies. You definitely don't want a system where political speech can be shut down because opponents falsely file "complaints."

It's pretty clearly true that if the whitelist were so great, nobody would feel the need to pay large chunks of money for protection from the spam filters. Your point can't be true that there is nothing to worry about or goodmail would have few customers. If there's nothing to fear why does Goodmail project so many millions of dollars in revenue?

Goodmail doesn't plan for person to person mail but I'm surprised you haven't read the scores of proposals for pay-to-send mail (including some that were truly email taxes) over the past many years. One should not be surprised that there is a groundswell to nip this idea in the bud.