Communism puts the power to steal property into the hands of government. As socialism takes money from its citizens to conduct the ruling elite's programs (even contrary to popular opinion), it moves from benevolence to abuse. At the point where taxation without representation occurs, we have communism. And Ronald Reagan proved that it could be fought. That he did without Kerry's help, of course. I'd argue it's what Kerry
did after he said this that damns him. He proved that he wanted to tax people to the point of taking their money without representation.
Same sex "marriages" would be the same thing, taking money in the form of taxes for practices that most Americans don't condone.
Stem cell research being funded by the federal government would be the same sort of a situation.
Foreign aid to pay for abortion would also be this sort of a problematic use of federal funds.
Kerry has followed the path to taxation without representation every chance he got. His attitude has always been, "If you can't beat the communists, join them."