pinefruits, you are doing it! Only perceiving the issue from an ideological perspective upon inheritance and power! 
I never said that the practical and legal aspect of abolishing the monarchy was a reason to keep the monarchy, only that no-one ever discusses the practical and legal aspects ... and it is a pretty huge consideration -- because one thing that bothers me about such an endeavour is how we actually guarantee that power moves from the Monarchy to the places and roles where we actually want it to reside and how we guarantee we have the kinds of checks and balances we would want.
The Queen actually has a lot of power, but she just doesn't use it -- to the point where if we simply supplanted the Queen with an elected Head of State, that President, in my view, would have waaaaay too much power for comfort.
Before you advocate abolishing something as a serious politician, you need to be 100 percent clear about what would replace it and how you would get there (and how you avoid an enormous f'k up in the process).
My shivering scenario would be getting rid of the Queen only to end up with a British Berlusconi. My nightmare scenario would be getting rid of the Queen to find the entire process of power transition becomes hijacked by a radical party, we are plunged into civil war and end up with a British version of Turkmenbashi.
You may say that would never happen but people, for time immemorial, have thought the very same -- only to find that actually it did happen and now loads of people are dead and the only things in the supermarket are sacks of mouldy potatoes.