That is not the problem. I just don't like the positions White gets in any kind of Sicilian. I want to enjoy my chess. I don't want to sit there for hours playing positions that I don't like, when I could be enjoying myself in a 1. d4 game (or doing something completely different).
As for the Morra gambit (why does Smith get to add his name) I think it is just bad. Or rather, it is only good for a draw. If I was still playing 1. e4 it would not be my choice against 1. ... c5.
We all have our unique reasons for choosing the openings we regularly play. I hate playing against the Sicilian. I have tried the main lines (black has Scheveningen, Dragon, Najdorf, Kan, Sveshnikov amongst others), 2. c3, the King's Indian attack, 2. f4, the wing gambit, the Morra gambit (sorry Ken Smith), the Rossolimo and found that in all of them Black has ways to create positions where I felt uncomfortable, even if objectively they were playable.
So I am forced to play something else. 1. Nf3 is too much work, because of all the possibilities for transposition and rarer moves like 1. Nc3, 1. b3, 1. f4 etc. do not appeal, so I am forced to open with either 1. d4 or 1. c4, and fortunately none of Black's tries against those bothers me as much as the Sicilian.