There's many an arrogant bigot in the public eye, running a large corporation, country etc. but there ain't many what makes me proper belly laugh like Jezza the hapless idiot when he's with the other two. Now that's a skill! Yep, really you should dislike him, and by the sounds of it some of those who've met him personally do. But I find him and Top Gear funny. Yes it's staged and scripted, but it wouldn't be half as funny otherwise same as all tv shows especially comedy, Have I Got News For You, Russell Howard, QI, all comedy panel shows etc etc.
By the way, I do not condone punching. Unless maybe it was Mike Brewer on the receiving end. I think we could let that one slide