The hatred is mostly generated by delusional Ferrer fanboys like you who hype his ability and achievements to ridiculous extents, as shown by the bold bit of the quote.
If the Ferrer hype machine stops working in overdrive, the hatred will diminish accordingly.
Well, in all honesty, his ugly pushing game and lack of talent play a role too, as does his vulturing of weak fields to inflate his rankings, but still delusional fanboys like you are the main reason.
Fanboys? I'm a tennis fan, not a David Ferrer fan.
I am a fan of all those who work hard and do their best with the talent they have. Berdych and Tsonga are two examples of players who don't get the results their talent achieves.
Ferrer has the better h2h vs both, has spent much longer at a higher ranking and has more tournament wins.
Whilst it makes you cry yourself to sleep, you cannot ignore the facts Lenders.