Here’s an idea:
When you hear an idea that doesn’t appeal to you, doesn’t interest you, or that doesn’t resonate with you, merely say (either internally to yourself or externally to the presenting party) “That’s not for me.”
Then add this other part on.
“And that’s ok.”
Then, either move on physically from the room or emotionally from the interaction.
This works better as a coping mechanism for handling ideas, concepts, and thoughts that we find to be personally repulsive, than engaging in feedback processes where you seek to destroy the other person’s sense of self-worth and seek to shame them into silence.
If it’s not for you, then stop wasting your time (and the other party’s) and self-select out of the pool of interaction.
Do this so that other people, for who the idea is appealing, can self-select into the pool.
This approach works better than staying in the pool of interaction, exercising the vain hope that the messaging underneath the interaction will resonate for you—or be relevant for you—at some point in time in the future, and at the end of the interaction, engaging in the politics of personal destruction via the use of weaponized negative feedback.