Debate, with ANYBODY, is the wrong solution to take in ANY "Taunting" situation, and will only cause further, unnecessary, problems.
The "Action" YOU decide to take (a quick "Knock it off" warning, flag, disqualification) are judgments for YOU & YOU ALONE. based on what YOU actually hear & see. Whatever lines YOU draw, to separate YOUR responses should be consistent & apply equally to both sides, as YOU determine.
The secret is respond to ANY/EVERY instance of argument or "Trash Talking" immediately & consistently to establish the proper tone, YOU require. However, when you sense an escalation in emotion may be developing, or preferably before the game begins, seeking the assistance of BOTH side Captains, "help control the emotions of their respective players BEFORE it may be necessary for you to get involved", can be very helpful in setting a tone that avoids problems.