Look the SNP attract people of all persuasions and beliefs because of their long term goal of independence. That is self evident. However I do not feel that they are not serious about their other ideals etc. You just need to take a quick look down their list of "responsibilities and rights of membership" to see that they support gay rights.

6. Every member has a responsibility not to discriminate in his or her conduct on the ground of race, colour, gender, religious belief or non belief or sexual orientation.

As to the original question. Alchmelvich is right. The stance from especially the Tories, Lib Dems and much of the unionist media makes no sense. We are told in the Telegraph now that a Labour gvt bolstered by SNP support would have no 'political legitimacy'. That is an absurd thing to suggest. Yes any party can choose who it would and wouldn't want to work with but it is a different thing entirely to suggest there would be no political legitimacy if one particular party were included. If a party, coalition of parties, or a grouping of parties hold a majority of seats then that gives them political legitimacy. Tis how it works!

David Cameron was telling Scots prior to last year's referendum that we were better together; that we were loved and that we shouldn't leave the UK because we could lead the UK. Now we are told by both him, sections of his party, and sections of the media that our prospective elected members have no legitimacy!!! So what they appear to have meant was we are better together and loved if we vote and think the same way as England but if not we should eat our corn flakes, get on the back of the bus, and shut up!