Didn't say anything about getting on his knees like a dog. But he did ask Rayleigh to leave him alone and stay out of his way.
Why would Kizaru not be bloodlusted with a job involving the Celestial Dragons? Why would Kizaru he angry if he had some hidden ability that would grant him victory? You're not making any sense. Kizaru is not strong enough to get past Rayleigh. Maybe after Kizaru gets a 2 year training timeskip he can be strong enough to get past Rayleigh but until then