Reword.

We have great plans for the forest, Tigerstar and I, and you could have been part of them. But we don't need you because you are weak and care more for kin than for power. I don't.

3 answers

Tigerstar and I have devised outstanding schemes for the forest, in which you could have participated. Nonetheless, we no longer require your presence as you lack strength and prioritize family over authority. Unlike you, I prioritize power.
Make it more vehement.
Our schemes for the forest are grand, but we have no need for your weak and feeble-minded self. Your misplaced devotion to your kin renders you useless to us. Know that I prioritize power over everything, while you cower in the shadows of sentimentality.