Wants and needs doesn’t matter here, buddy, because your argument is that it’s either unethical or illogical to give money to a company that is putting it’s prices up unnecessarily, if you can afford it but others can not.

Whether you try to find something more economical elsewhere also applies. You’re either boycotting that particular provider of phones/food/whatever or you’re not, and your argument is that everyone should boycott prices if a portion of the population can’t afford the increase or generally finds it unreasonable.