Are collapsible trunk organizers actually sturdy?

Verified-purchase reviewers and YouTube testers generally agree that 600D–1680D Oxford fabric organizers with reinforced base plates hold up well for groceries and light gear, but r/BuyItForLife threads repeatedly warn that the cheapest soft-sided models collapse inward when carried by the handles. If you need rigid sidewalls, plastic collapsible crates (mentioned by community posters) are the more durable alternative.