I dont think anybody is looking to cut him down, i think its more the fact that people's perception is that he hasn't had to struggle in a minor team and really work for his success and climb his way to the top like so many others before him, his teammate for example. Nobody likes the new kid coming in and stealing 'the thunder' as most people see it, unjustifiably.
Alonso, Kimi, Massa (espicially massa), Fisi etc etc all had to get into an F1 car and figure out the best race setup, wet setup, quali setup for themselves in an alien team with nobody holding their hand throught he process. Thats how you develop respect as a driver and a racer. To most people Lewis bypassed these steps and jumped straight into a WDC winning car and had it all done for him, no setup knowledge required... Ill bet that if NO information sharing happened in the Mclaren garage, theres no way Lewis would be where he is on the WDC table.
People will like him over time, but as it stands now the crap that we're force fed every two weeks is getting to be a bit much