How would giving them more money lessen their abilities? You think they would just say "Hey thanks, now we can erase these other taxes"?
Things don't work that way. Btw the only fair tax rate is zero, in my opinion.
The other taxes are erased automatically by switching to Bitcoin, because there are no taxation rules for this yet.
You can also wait until there are taxation rules for Bitcoins, but I don't think it will be better.