Auntie-
Jesus taught "Love thy neighbour" and expected his followers to do this themselves.
Not to rely on the government of the day to do it.
During Jesus's time, it was often possible to know everyone in your village. We now have a world population of nearly 7 billion people.
Despite this we have a huge surplus of wealth like we never have had before in human history. We have so much wealth that no a single human being has to go without food or shelter - if we so choose.
We have already tried relying on charity and volunteering to take care of the poor and needy - it was called the Victorian era.
The welfare state was created because of the post WWII consensus, that a better world is possible, and that we can only solve societies problems by working together.
So perfectly possible to support a party that promotes Big Society, personal giving, volunteering etc and there be no conflict with Chritian faith.
Big Society is a scam and isn't even talked about anymore. The purpose of 'Big Society' was a cover for the brutal cuts which are leaving people homeless and destitute. It has failed.
There is no real support in the Bible for the idea of tax, or of centralised anything.
That's because during the time of Christ, there was no such thing as the welfare state and the population was a fraction of what it is now. All the modern facilities to help people who are in need (healthcare, shelters, foodbanks, job seeker's allowance, housing, etc) didn't exist.
But I don't think those who are in favour of centralised high-tax arrangements cannot be good Christians.
The important think, I believe, is that the needy are helped.
They aren't being helped. Cutting essential services is killing people and making people homeless.
Do you think Jesus would approve of 'the bedroom tax'? Forcing terminally-ill cancer sufferers to 'get back to work' or have their support withdrawn? Withdrawing support for disabled people to live independent lives, some of whom will die as a consequence if they don't have someone to take care of them?
Does that strike you as loving and compassionate?