Millwall remain my main club, but others have turned my head, writes Michael Opitz. Also letters from Neil Bage and Ariel J Friedlander I read Luke McLaughlin’s article with a great deal of empathy, yet still with some uneasiness about the taboo of having more than one club ( Have you ever switched allegiance as a football fan? You are not alone, 1 August ). A world I inhabit. I too was at the Millwall v Forest game marred by crowd trouble. It was my first! My family are mostly Millwall, who re…