Perhaps when we consider that viruses are unable to form complex structures like tissues, organs and entire organisms, we must rethink if they're the same level

Perhaps when we consider that viruses are unable to form complex structures like tissues, organs and entire organisms, we must rethink if they're the same level of "life" as cells? I don't think a single definition of life is useful or might even exist, just as I don't think a single universal physical theory is possible.