Its the weirdest fucking argument Ive seen recently. Kizaru has done way more to Luffy in Marineford (kicked 3 times, lasered, insulted personally in front of WB), where he couldnt do anything about it repeatedly.
Zoro gets "offscreened" in an explosion (where he was admittedly weakened from Kuma) with Kizaru and people call it a personal beef that Zoro's been daydreaming about for 2 years lol