An evergreen strung with lights, adorned with hanging bulbs, and strewn with tinsel knows no other name but Christmas tree. Rhode Island Governor Lincoln Chafee strains credulity in calling it a “holiday tree,’’ in order to avoid offending Jews, Muslims, atheists, and other constituents who aren’t celebrating Christmas. But while Chafee’s renaming of the Christmas tree defies logic, the sentiments behind his stance are sincere and well-intentioned.