[esharte]

The issue is the "Mourning period" is being used as cover to crown a new monarch with no opposition. People are being told "not now", and how disrespectful they are.

This is by design.

Meanwhile it's somehow not disrespectful to replace the Queen within hours.

[soared]

How would a monarch have opposition?

[lamby]

I think that's OP's point.

[netsharc]

Your "meanwhile..." doesn't make sense, why is it disrespectful, technically it's the kingdom's/the monarchy's rules, and this family is the monarchy. And the replacement happened not within hours, but Charles became king at the instant Elizabeth died, that's why the sentence is "The Queen is dead, long live the King!".