The answer to the original question is'yes: you are being unreasonable to expect motorcyclists to obey the same rules of the road as you'. Some, such as speed, are common. Others, such as filtering, recognise that motorcycles are different to cars.
As a general request to all car drivers: we do not need you to be paranoid and keep looking out for us when we are behind you. We weave in order to get the mximum possible view of what is ahead.
All we ask is:
Please indicate "before" turning - I know it only proves that your indicators work at that point in time, but it helps.
Please take proper observation "before" changing direction.
Please try to drive in a broadly straight line and remember that it is only in Scalextric where the line in the middle of the road runs underneath the car. With real cars the white lines should be either side of the vehicle.
And please try to understand that a bike accelerates far faster than you think it does and cannot be expected to stop on a sixpence when the road is wet - so when pulling out it is best to leav a little braking room or - dare I say it - wait.
If these basic rules are adhered to - you can refer to The Highway Code if you forget them - we motorcyclists are more than capable of winding our way between and around you. I understand how infuriating this must be when your two hour journey takes me 40 minutes but, as someone posted, the cost to me is getting cold and wet on occasions.
But while we're on the subject of bikers obeying the same rules as drivers, let's try these for size:
When did you see a biker trying to compose a text message while riding? Try putting on a pair of gloves and sending a text, if in doubt.
When did you last see a biker on the phone while riding?
When did you last see a biker reading while riding - or playing with the lap-top on the passenger seat, or fiddling with the radio or the air-con?
When did you last see a biker turning round to sort out the misbehaving kids in the back seat?
You don't.
But I think what alarmed me most when I read Soupdragon's posts is this: this forum has the tag-line By Parents For Parents. Where do you think the various youngsters on scooters and small bikes came from? Immaculate conception? A Disney Kids factory? Or is it that other parents' kids are justifiable road kill if they have the bare-faced cheek to overtake me? One can only assume that such petty mindedness is being passed from one generation to the next. Nice.