If you think the Founders were in the habit of killing tax agents of the British Crown, you probably need to refresh your early American history.
That isn't how it happened.
They fought a war, quite formally, with rules of engagement and as much of the eighteenth century niceties as they could muster.
Then, almost as soon as they were finished, they put down the Whiskey Rebellion.
They fought according to the customs of their times, though not always. Francis Marion fared quite well when employing unconventional and often brutal guerrilla tactics. But it isn't how they fought that is pertinent to this discussion, it is why they fought that matters and that can be summarized in one word-taxation. If you wanted to get more specific, you could say taxation without representation-paying taxes to a government that did not represent their interests. So yes, I say they would have been shooting by now.