I’ve said this so many times now I am sure most are sick of reading it, but cynical/petulant fouls like “rugby” tackles, shirt pulls, and kicking the ball away—which are all generally unambiguous and thus not open to interpretation—should be red card offences, regardless of where they occur on the pitch, so as to reduce their frequency.
They are a blight on the game and need to be stamped out, pardon the pun. It will affect us, of course, as our players will need to adjust to it, but it would more significantly impact many of the less skilled teams like Cardiff, Newcastle, and United much more (as they employ those tactics against the better teams to try to balance the scales, hurting the quality of the matches in the process), for the benefit of football.