That's ~100m that could be put towards things that actually help people and improve peoples lives.
Explain your reasoning, please.
I don't doubt you're well intentioned, but there's probably more useful things to be fighting over. Especially as what you're fighting for will generate negligible incomes at best and negative incomes at worst. The last thing the UK needs after Brexit is a referendum on becoming a republic.
I disagree. The UK is still backwards in many ways, hell, they still have an unelected upper house. Getting rid of the monarchy sends a strong message and allows other reforms to follow in its wake.
I'm also skeptical the monarchy generate any tourism. People come to see the palace that would remain regardless, and the funny guards that trample over children. They don't come to the UK for that stuff, they see it while they are there, and they certainly don't come hoping to see a member of the royal family.