I think the situation around the Colston statue is a little bit more complex than it first seems.
The vote one whether to keep the statue was a newspaper poll of 1100 people in 2014.
There was a campaign to change the wording on the plaque of the statue. The plaque makes no mention whatever of Colston's slave trading - and surely this is whitewashing history - so a revised wording was proposed which acknowledged his philanthropy and also the extent of his involvement in the slave trade. However this was blocked by one councillor and the Merchant Venturers, which is the organisation to which Colston left his money and which still runs schools, care homes and almshouses in the city.
The council rejected the amended wording because it didn't fully acknowledge the slaving - it didn't mention the children he bought and sold, and said he was involved in the 'transportation' of slaves as if they'd somehow accidentally ended up on his ships. It also didn't mention that he was very strict about who should benefit from his philanthropy - he excluded anyone who didn't share his political and religious views.
So the plaque remained the same, because the council wouldn't accept the wording that the Merchant Venturers wanted. Because they considered that whitewashing of history to be worse than what was already there.
I fully accept the concern about the idea of 'the mob' because who knows when the mob will turn on me. But maybe if the 'proper channels' have shown that they're weighted against the people there comes a point where they will take things into their own hands.
The plaque on the statue said it was erected by the citizens of Bristol, and on Sunday the citizens of Bristol took it down. I'm glad my black friends in Bristol don't have to walk past it any more.