I’m in agreement with comrade fanonfan over here somewhere. As to say the answer is no, at least for the reasons you stated, this type of individual action is pointless towards making a dent on the system, you should make your surroundings comfortable, and the most important part is to understand the harm of the system and of its parts and of buying a particular type of product makes you feel extra bad, by all means avoid it, but just express yourself in the manner you like best, a comrade happy and active is better than a sad comrade in boicot of companies that often cannot fail under capitalism. Do what feels right to you, if being minimalist is rewarding and gives you that rebelious feeling great, but it js by no means a general recommendation.