Jews disagree about everything. There is nothing antisemitic about that. But they didn't claim that the existence of the prayer made Jews automatically liars.
Lol, parse much?
I'm not wildly out of line here - it's a historical disagreement over which even very high and learned Jews have disagreed to the point of some wanting it struck completely. I'm not interested in your denial of that, or your arbitrary requirements that I test myself against your claims of averaged contentions. Those are cheap argument tricks, just as is your arbitrary comparison to Catholic confession (around which are far more restrictive limitations than Kol Nidrei).
Specifically, the problem with Kol Nidrei is that it's limitation to promises to God reach, by logical extension, to all promises in the world as well. For if a Jew can renounce promises to God, there's no spiritual foundation to their worldly promises either, the former being far more profound than the latter. Without inescapable allegiance to God, there's literally nothing holding anyone to anything else.
This argument goes FAR beyond Judaism - it is the very root of ANY spiritual philosophy, in ANY religion.