I agree with you to a point. But technically, and legally, unless a person or company has a legal and current patent, then it's not stealing to copy their idea/design. But naturally some may disagree.I don't think they're trying to pass it off as a benchmade. I think they are lazy and can't design their own knives so they steal a cool looking knife design from a highly respected knife company to make a quick buck.
Now if a company intentionally tried to fool people into believing that their copy was in fact the real-deal with false branding, labeling, makers marks, etc, then that would be counterfeiting/fraud, and that IS a crime, one that should be heavily punished.
But consider this comparison regarding "copies"- Levi Strauss invented denim jeans and received the first US patent for them. Eventually that patent ran out. Today, several American companies produce denim jeans (Lee, Wrangler, etc). Now using the same argument being proposed in this thread regarding knife copies, it could be said that every one of those companies that are producing denim jeans are stealing Levi's invention. I wonder how many people on this forum who are wearing jeans are wearing a copy of Levi's invention and couldn't care less about it.