Why is the FIA so biased towards Ferrari?

Because the FIA are full of ex Ferrari staff, even the head of the FIA is an ex Ferrari team principle.

As for the Vettel incident, HE WASN'T WRONG, he never left his racing line, and it was entirely Alonso's fault that he left the track as he mistimed his own move.

As for the regulation concerning leaving a cars width, that only applies to straight sections of track, not curves. The rulebook is clear on that.

Hence the stewards penalised Vettel for breaking a rule which only refers to straights, while driving through "Curva Grande". So what probably isn't so clear is what stewards class as straights and curves. Unless they have laid down their own definitions to the drivers, then Vettel has been stitched up.

If the day has come when drivers have to move off line to allow the car behind to take their position, just because they've made a dumb move up the outside, then F1 is as good as finished. Because all any driver needs to do to get around a car they can't pass, is drive up the outside of them on the next bend.

There was nothing in the race at Monza showing a bias towards Ferrari. If you are talking about the Alonso/Vettel incident, Charlie Whiting had issued a specific ruling last week that says you have to allow a car room enough to keep all four wheels on track. Vettel was specifically informed of this on Friday, and yet he stupidly ignored it on Sunday.

Basis for this? Because if you mean Vettel getting the drive through today vs Alonso, HE WAS WRONG. And totally deserved what he got - and I'm no Alonso fan. When Schumacher was Ferrari (and I do mean was Ferrari) it would have seemed so, but since he's moved on, I don't think the FIA are biased in that direction any more.