Wasn't the "legislative" council filled with appointees and served as an advisory role to the british governor ruling over hong kong? Where is the democracy there. Also china played around with "local" elections, doesn't mean they were/are a democracy.
As for your last point, so what? Nobody is claiming china is a democracy. But neither was britain. And it's laughable that "chinese pressure" is why britain didn't allow democracy in hong kong. It's a convenient excuse that doesn't change the facts.
Britain never allowed democracy in hong kong. And it's simply absurd to claim hong kong was "free" when it was a conquered colony of britain. It's one of the ironies of history. Hong kong only became "free" and "democratic" under chinese rule.
And in the final years, the "LegCo and the Urban/Regional Councils" may have been elected but they were powerless advisors. The ruler of hong kong, the governor, who had actual power was not elected.
https://en.wikipedia.org/wiki/Chris_Patten
Does that guy look like an "elected" and "rightful" leader of hong kong? A guy who wasn't born in hong kong and who didn't grow up in hong kong ruled hong kong by appointment, not election. It's absurd that anyone would claim hong kong was free or democratic at any point under british rule. Britain itself wasn't a democracy and it never allowed any of it's colonies, especially the non-white colonies, to become a democracy.
The truth of the matter is hong kong was never a democracy and probably will never be one. Neither the colonizing brits or the chinese were interested in hong kong being a democracy.