So you think many people believe that the Irish choke tackle involves placing a hand over the BC's nose and mouth, thereby preventing him from breathing? And that in some way, this suffocation technique prevents the BC going to ground?
People struggling to understand the concept of a choke tackle appear to have a problem with metaphor. As a literalist myself, I can understand this - but I can also see that it doesn't help to move the discussion along.
Let's all agree that wringing an opponent's neck to prevent him breathing is illegal, and will result in a red card at least. Let's also agree that covering a player's breathing orifices to prevent him breathing is also illegal and will result in a red card at least. Having agreed that, let's then ask whether Ireland's highly successful last several seasons have been based on either of these practices? And when we find that they have had very few red cards in that period, let's think hard about whether metaphor might be in play, such that the Irish are said to either choke off the supply of the ball, or to smother the supply of the ball.