When the Chinese family who have a café in the small town near me put a sign in their window supporting ‘marriage equality’ I thought, that’s it for marriage as we understand it in this country. A café that knows its market, that serves steak sandwiches and dubious-hued fried rice to the very antithesis of inner-city smarties in a community with no apparent gay presence (there may be a few cheese-making lesbians out on a farm somewhere), that has commercial acumen enough to know how not to alienate its clientele – if the people running that, and lots of others...