What do the Libdems actually stand for?

Willie Rennie is beginning to sound like a one-issue politician, that issue being gay marriage. Not that he could really say anything at FMQs about the local elections after his party got trounced. Is there a connection between the poor performance of the Libdems at the polls and their vocal support of same-sex marriage? Certainly, being champions of gay marriage has not helped boost their popularity and so Calton wonders why Willie keeps harping on about it. Surely there are lots of other things more relevant to the general population in this time of economic uncertainty and hardship? The Libdems are looking increasingly irrelevant and out of touch, not helped by their leader's obsession with minor issues. Does anyone know what they actually stand for these days? Calton does his best to keep up with the political scene in Scotland but would struggle to name a Libdem policy apart from legalising marriage for homosexuals. It seems they really do have a political death wish.