This is exactly my position too.
And if you force me to chose between a) democracy, free speech and right to protest OR b) a monarchy, then I will very quickly become an anti-monarchist.
The fact that the government felt that they had to rush in legislation in the last week which was - completely predictably - used to detain people unlawfully, to save possible embarrassment during the coronation, has done nothing to improve my view of our monarchy whatsoever.
I struggle to believe that this would have happened without some sort of implicit or explicit pressure from Buckingham Palace. They did afterall have veto rights on aspects of BBC coverage [0] so it seems highly unlikely to me that they weren't also working with the government to attempt to "contain" possible protests.
[0] https://www.theguardian.com/uk-news/2023/may/05/revealed-roy...