Frankly, a lot of it is just plain silly and actually puts back the cause of a British Republic and an elected Head of State. It just makes us seem to be, dare I say swivel-eyed loons?
As I posted here last year on the Queen's Jubilee I am opposed to the politics and not the personalities. Name calling is not going to change the 80% of the British population who support the monarchy. Reasoned argument might. Until then the Queen is our Head of State.
So I support those who welcome the birth of a new Prince but point out we should not forget the other 2000 babies born yesterday in the UK. Many of whom will live and die in poverty. Changing from a monarchy to a republic would not necessary make a jot of difference to this (as in USA). Making considered political and economic arguments for a different type of society will (eventually - fingers crossed).