Basically, consumption activity is a natural thing and is indeed a part of basic human activities in general. With a note, if it is done based on two things, namely the need and the use/benefit. So it becomes natural for someone to consume an item/service because it is really needed and useful for the person concerned. The problem is when the decision to consume something is no longer rational.
Not only because the item is needed and useful, but there are other factors such as lust, momentary gratification, and others. If someone uses goods/services irrationally and continues to do it excessively, unplanned, and continuously, then it will become a consumerism lifestyle. If someone has embraced this lifestyle, it will affect how he thinks, how to manage time, money, and funds, how he perceives things, and how he conceptualizes himself.