Thomas Edison, was he a fraud?

Edison wasn't a genius. He was a fraud and a ruthless and skilled businessman,It always surprises me when he is credited with the invention of the lightbulb (by usually american authors)He did not and its no great secret that he did not , Joseph Swan did, but sold the marketing rights to his invention (in North america only) to edison whilst he retained them in europe and britain. In an era of poor transatlantic communication. Edison somehow morphed "exclusively marketed in north america" into "invented by" he ripped off Tesla ,its true, the real genius, like an idiot,if he hadn't treated him so shabbily, with his ruthless business acumen and teslas genuine inventive genius, they may have moved technology further quicker.He had a stable of young inventors whose contracts gave edison rights to all their discoveries.I'm not sure that he actually invented anything at all, possibly an early badly functioning wax cylinder version of the phonograph (later improved by someone else into something actually workable and marketable)but given his track record , probably stole that idea. A thoroughly unpleasant individual whose reputation is long overdue to be shown for the pack of lies and hype that it is