Gay couples get a fairer deal in the UK than they do in the US. The UK Civil Partnership act has been in place for around the last 10 years. This ensures that same-sex couples have had equal rights, particularly when it comes to financial affairs. The need for actual marriage in the UK is not nearly as great as it is in the US, because of the availability of the Civil Partnership act. Consequently when same-sex marriage was announced as an option, lots of people, gays included, were asking why. The issue is much different here than it is across the pond.
Originally intended as a vote winner for the Conservative party, Prime Minister David Cameron was unable to get a yes vote from his own party on same-sex marriage, so he turned to the Labour and Liberal party to secure a majority in the House of Commons. This in itself has alienated him from his own Conservative party somewhat.
Same-sex marriage has now become legally obtainable. A Civil Partnership is also obtainable but is only available to same-sex couples.
The downside to all this is that the country has become polarised on the matter. Religious people are appalled and call hell-fire and damnation on gays just like they always do, the more passionate supporters of same sex marriage cry "bigot" to anyone who isn't 100% behind them, while the vast majority of the population who were once quite happy to accept the gay lifestyle with a live-and-let-live attitude are now feeling intimidated by the militance of some of the pro same-sex marriage groups.
Tolerance seems to have gone right out of the window.