Going back to the OP, we are spending a disproportionate amount of time on Britain/the UK becoming a republic. At best we seem to be talking about the views of only a quarter of the population. I imagine that has dropped with what most would see as the reminders just what they have done for our country (while being human, of course).
As I posted previously, there is a lot of support for the monarchy in each age group, barring the 18-24s who come closer. Young people are generally caught-up with their own lives, so I don't find it surprising. When asked "should we continue with the monarch, or should we have an elected Head of State instead" this group answered about a third/a third/a third. The "continue" group being slightly higher than the "elected" group, and the "don't knows" being the highest. In all other age groups, the "continue" groups were well ahead.
I do wonder what we are discussing here, although I would happily agree that has been wonderful to see the turnout of all the age-groups both to say thank you to someone who gave a lifetime of service and to enjoy being part of our history. I can see nothing wrong with that and a great deal that is right.