While I agree you "shouldn't" buy the game, we shouldn't even be giving legitimacy to these practices at all. We generally try to prosecute snake-oil salesmen, shutdown hucksters, put con-men out of business, etc..

There are unfortunately many reasons why people might buy the game - false advertising, lack of proper research, peer pressure from a poorly informed populous. You may be tempted to say "you should do your research", and while I agree you generally should, its also true its impractical to research everything. The same way I shouldn't have to go into a grocery store and have to worry about if the peanut butter is poisoned with salmonella, a consumer be able to purchase a product, and have the reasonable expectation that they can do what they want with the product within the confines of their own home.

Finding out after you have purchased a game that it is arbitrarily locked down, and that you have little recourse to get your money back, is a form of fraud.