I don´t understand why there is a growing hate on Alonso, as there was with Schumacher in his Ferrari days... but maybe it is a good symptom.
I'm fairly new to F1 and I try to stay neutral but I have noticed a certain distaste for Fernando Alonso growing in my mind over the course of the season. So perhaps I can explain my own feelings.
To me, it seems like he has a very strong sense of entitlement, and a certain disdain for people or things that don't obligingly get out of his way. This would be annoying in most people, but it's doubly so with a race car driver, as he's a voluntary participant in a sport where other contestants are sort of obligated to try and stay in his way -- and yet he still complains when they do so.
He gripes when the smaller teams don't let him by when racing
for position. He gripes when penalties to other racers don't come fast enough to suit him. He whines when his teammate won't let him by despite being, from my position, in pretty firm control of the race. Etc.
In short, he creates an impression of a person who, having won world titles and landed a seat at Ferrari (a team that seems to mirror his attitude), expects victories to be handed to him by people who are supposed to be seeking that victory for themselves. He doesn't seem to get that what he accomplished in the past was...well, the past. If he wants it again, he has to fight for it.
Possibly worse is his tendency to be around when something sordid happens, like Ferrari's team order to Massa, or the Piquet Jr. 'Crashgate' thing. Complicit in them? Don't know. But he's always around, which probably isn't good for his public image.
These are just my feelings on the subject, of course.