Tories inflicting their moral standards through the taxation system

The Tories have now outlined their tax plans, to give married couple and those in civil partnerships a tax break of around £150 a year.  The first thing I noticed about this was the late addition of civil partnerships, presumably added to try and take some heat of the Chris Grayling incident.

As the BBC website says:

It would apply to basic rate taxpayers earning under £44,000 where one partner does not use their full personal tax-free income allowance.

Is this supposed to act as an incentive for one spouse to stay at home?

Do the Tories really think such a trivial amount will encourage couples to marry or not to divorce?

The proposed tax is unfair for a whole host of reasons.  It discriminates against unmarried couples and single people for no just reason.  Single people often struggle much more financially as they have pay a mortgage and bills on one income, and as a result of this measure they will also be expected to pay more tax than married couples.

You would have thought the Tories would have learnt by now not to impose their moral standards upon the public.  Particularly as it back-fired so badly against them with their Back to Basics campaign in the 90s.

They are funding this scheme by a new levy on the banks.  Surely any income brought in should be used to reduce our national debt or protect public services.  Instead any savings or new sources of income the Tories are highlighting are being used to offer tax incentives to win votes.