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There are no winners in balltism.
Some people, like me, who catch all their mons in luxury balls just want their Pokémon to be able to live in abundance, an environment where all their basic needs met and cared for, but without consideration of what their individual needs might be.
People who colour-match their pokeballs with the Pokémon they catch already have a preconceived idea of what the Pokémon should be like and what it should be molded into. The Pokémon might be happy with it or it'll start to resent their trainers like a child might resent his parent who pressures them into a certain occupation like doctor or concert pianist.