"There is no ethical consumption under capitalism" doesn't mean "eh, don't worry about it", it means that you should consider alternatives that reduce or eliminate "consumption under capitalism".
Growing your own food. Repairing your stuff and the stuff of people around you. Foraging. Helping your neighbours. Establishing or borrowing from a library, be it for books, tools, toys, or anything else. Even creating free and open source software.
There are *lots* of ways you can satisfy your needs and goals without consumption under capitalism, you just won't learn about them from capitalist news and advertising channels.