Scottish MP Lara Bird bested the archaic royal oath of allegiance with what look like crossed fingers when she was sworn into Parliament this week. Crossing one’s fingers when making a promise means that the would-be promiser has no intention of sincerely holding that promise. Bird therefore smartly worked her way around the anachronistic ‘pledge of allegiance’ to the Windsors. This amounts to what Gen-Z and Gen-A would call a ‘mogging’ of the British crown. And too right — MPs are elected to serve us all, not just one wealthy family. It’s time more MPs did the same. In making her…