What an oddball he is. Having done an MA in political philosophy, can I share something of a crash course in academic politics? You might find it interesting anyway - I get the impression you will.
Thomas Hobbes was the author of "Leviathan", a well-known text in this field. The most famous quotation from it is about what happens if you don't have government? "Life is poor, nasty, brutish and short". If you're going to have a civilised society, at the very least we need the rule of law so people don't get away with murder and theft. Things like that ought to be punished because if we're going to live together peacefully, we have to define them as wrong. To have that rule of law, there has to be a government, and there has to be punishment or there is no point in defining what is a crime and having courts to judge it.
So there has to be government. What kind should it be? What we've got, and we've taken a thousand years to evolve it, is the British kind of democracy. We elect our MPs, and between them they sort out a government. Usually one party gets more than half the MPs and they've won. If no party manages that, as happened last time, the biggest party can try to form a government or they try for a coalition.
OK, MPs might be corrupt. It's all up to the people who actually stand for election and get elected. In practice that means they've got to join a party, because not many people in the local area will know the candidates personally. Back when only rich men were allowed to vote, that could actually be true and there were no political parties - but now any adult can vote, we have parties and how else can you choose who to vote for unless you know something about who the candidates are?
We could have total democracy with everyone voting on every little issue but then would we have the time for it in between work or study? (Switzerland actually comes close to this - anyone who can get enough signatures to a petition can force a national vote on the issue. I have a Swiss friend and he gets a pile of ballot papers in the post every few months.) So we elect our MPs and leave them to decide things for us. If we don't like what they do, we can vote for someone else next time. What's the alternative?
I happen to agree with you on who to vote for as I'm 48 and in 30 years of being able to vote I've always voted Conservative. Of course nobody's perfect and like you I'm the first to admit that about the Conservatives, but they understand the real world and insofar as the Conservatives have an ideology at all, it's pragmatism - do whatever seems right at the time. In my lifetime, it's always worked. I've lived through two periods of Labour government I can actually remember (and one I can't because I was only a baby - the first Prime Minister I was actually aware of was Edward Heath, 1970-74) and the Conservative or Conservative-coalition government afterwards has had the same problem both times. The economy is in a mess because Labour borrowed too much money so the new government either has to put tax up or cut public spending in an effort to pay back some of the debt. So which do you do, or what combination of both?
People complain about the coalition now but that's nothing - I remember Margaret Thatcher. Amazing, incredible woman. In the mid-1970s we had inflation at levels you've never seen in your lifetime, and a government that would give in to anything the trades unions demanded. She smashed that by introducing new union laws on strikes and never giving in to when the coal miners went on strike for a whole year in 1984-85, and having a radical new economic policy to bring inflation down. What she did HURT and threw a lot of people, especially in the north of England, out of work. They will never stop hating her for that, and that explains the "ding, dong, the witch is dead" thing when she died last year. But we were so lucky - she was the right person for the time and she even forced the Labour Party to change. Labour now is nothing like it was then. In a way I regret that: at least in the 1970s it offered something positively different.
Of course she wasn't perfect either. She got to the stage where she would ignore all advice and in the end her own party kicked her out. The final straw was the poll tax. What we had for local taxation was domestic rates, which was based on the estimated rental value of your home. What if you are an old lady who just happens to live in a big house you inherited and can't afford it? So she replaced it with every adult paying a community charge of the same amount. This is even more unfair and it resulted in riots in Trafalgar Square. It was soon replaced with the council tax, which is "sort of" like rates used to be. But having said all that, our country would be very different if Maggie Thatcher hadn't run it for 11 years.
On your immediate problem, could you get away with leaving facebook completely? I've never even joined it.