Who has not reacted negatively to a prohibition to use a work on the Internet or elsewhere because it is protected by the © symbol or an expression like: "All rights reserved for all countries"?
Often seen as impediments or unfair blockades, these warnings serve to advise a potential user to ask permission to use the work. Contrary to what some people believe, not everything in life is free. To produce an artistic work costs money to the artists who, whatever may be said, does not live with just the love of their Art; money is needed for rent, food, clothing, brushes, paint, material, tools, etc.
In other words, if we want artistic creations, music, original literary works to still exist in the future, well, it is necessary for the creative artists to be able to live now. Some people may not like Copyright / author’s right, but it still remains the best way to remunerate the making of creative works of art and the freedom of expression for Artists.