I disagree entirely.
I think our lovely government is doing a great job and if they increase the price of petrol (most of which is tax anyway), they will have more money with which to run our country even better.
If the 51 million (approx) mindless morons who complain to hell and back about the price of petrol, but still continue buying it, really want to change something - All they have to do is stop buying it.
Seriously, seriously, seriously - You want it to stop, you stop it.
Within a single year of no-one buying petrol and diesel, the price will hit the floor. If it were up to me, I'd ban the lot of you from buying it. Yes, your lives will be affected, so will every business, corporation, farm, service and private individual.
But with no-one buying it, the entire country (and some very influential corporations) will pressure the fuel companies into dropping prices pretty sharpish.
But it'll never happen because the British public are nothing more than bleating sheep, waiting for someone else to sort their problems out.