Of course he should be sacked as Australian Captain and that is a life sentence. I think he should also be sent home and should be suspended for a decent length of time. Not rubbed out of cricket for life but he should be rubbed out and never be captain again. I think this will almost certainly happen and rightly so.
I guess some people will see this as an over reaction if it happens but most will wholeheartedly support it. I haven't likes an Aussie Captain since Punter and I liked everyone previously. Greg Chappell maybe not so much as a captain but my favourite batsman at the time and Hughes struggled but Clarke and Smith have both been embarrassing. Maybe it is because of all the money that they get these days that sport is no longer sporting? Just a damn shame such a great game is being destroyed. Smith will not be captain or else the Australian public will crucify the ACB.
