To my knowledge I have never called you a defamatory name... but I stand to be corrected & apologise if I ever have.
"Rossi, Hayden, Bayliss, Melandri,... they can't or couldn't win a single race on a Ducati."
Not quite fact but close enough... & we'll ignore your exclusion of other champions Capirossi with 7 wins on Ducati's & Stoner's achievements of course.
"I'm am simply presenting facts"
... as pointed out above, you're selecting (nearly correct) facts to suit your point of view in this discussion... facts don't require acknowledgement... they are what they are... I'm not going to pat you on the back & say well done every time you get something right, & I'm not here to answer your blatantly loaded questions... their relevance, however, can be debated as can your obvious & deliberate exclusions. It would appear I'm not allowed that luxury in your book.
We both know that during their 1st 4 years, 2003 to 2006, riders on the Ducati performed poorly, coming only 2nd in 2003 followed by three 3rd placings in the constructors' championship... I wouldn't expect any different from a new team... YMMV. In 2007 their fortunes changed & they won the championship & they've been close behind or in front of Honda in the riders' & constructors' championship ever since, up until last year.
"Unlike Rossi , Ducati have a record of repeated failure."
Every bike & rider on the grid has a record of repeated failure... Rossi has failed to win a title 2 years in a row & failed to win a race since 2010, as he failed against Ducati in 2007... is he a failure? Honda hadn't won a title since 2006... a record of repeated failure... Stoner failed to win several races last year... an obvious failure... he repeated it 7 times! The Ducati was winning races... it won more than Honda 2007 to 2010 amid repeatedly failing along with Yamaha & Honda, not to mention Suzuki & Kawasaki, as each won or lost races.