Strong enough, indeed, that Raymond soon beat his own hasty retreat, ending his "smart gun" sales plan before it had begun--but not without posting a rage-filled, whiskey-fueled, obscenity-laden rant on video (see sidebar video if extensive use of very strong language does not offend you) condemning gun rights advocates who had expressed their objections to his plan.
Kurt is so passionate about the cause, he feels no need to constrain himself within the bounds of honesty. Anyone who watched the video knows that Mr. Raymond was not railing against "gun rights advocates who had expressed their objections to his plan." He was railing against the fanatics who THREATENED HIS LIFE because of his plan to reach fence sitters and gun control folks by selling smart guns.
By calling the man a quisling, Kurt, who has an exceptional grasp of the English language and its nuances, is purposely supporting those fanatics and encouraging others to act similarly.