The Ireland team should be banned and all their results in the 6 nations this year should be void. Meaning England just need to beat Wales to win the 6 nations...
I don't think they deliberately targeted Dupont but the way Ireland go into rucks is consistently illegal and referees should be harsher on them - to be blunt, it's cheating.
Beirne hit the ruck on his feet and took two steps, Porter entered on his feet. Play on. It's a dynamic situation, anyone who steps on a pitch risks injury.
Edit: the rule change to take it out of the game is to remove jackling by the way. There's no way to get rid of a strong jackal currently without entering the ruck in a way that a player will not lose their feet soon after impact.
France fly-half Romain Ntamack feels it is "totally incomprehensible" that the terms of his suspension differed to the sanction handed to Ireland centre Garry Ringrose.