A federal appeals court backed on Sunday a Middleborough, Massachusetts, middle school’s decision to restrict one of its students from wearing a T-shirt with the words, “There are only two genders.” The First Circuit Court of Appeals ruled that officials did not act “unreasonably” when they concluded Nichols Middle School student Liam Morrison’s shirt may be understood “to demean the identity of transgender and gender-nonconforming” students. Morrison’s lawsuit, filed last year by the Alliance Defending Freedom and Massachusetts Family Institute, argued officials violated his First Amendment r…