Well I doubt you'd find any serious person who'd argue racial abuse is not over the line.
In regards to the other incidents being over the line, yes it is where I define it to be. You can disagree as you wish.
If you believe Sreesanths antics were ok, then fine, I disagree and that's that. However if you think it's the same thing as what the Australian's have done, then you're just wrong.
