Hong Kong has no politicians
To term the Hong Kong ruling class as 'politicians', would be a misnomer on a scale comparable to terming the Moon a planet. The Moon is a moon; the spade is a spade; Hong Kong 'politicians' are no politicians – they are, at best political goons, hacks, activists, and competent bureaucrats. This is by no means intended to be derogatory – it is merely a non-incidental fact of our system that it does not, and cannot, give rise to politicians that thrive at doing politics.
Beijing's baselines are unyieldable, that much is clear – China is ruled by the unitary Chinese Communist Party, and Beijing has limited appetite or tolerance for a parallel ruling party in Hong Kong; it is, in particular, uneasy about the sprouting of political forces that threaten to supplant its overarching jurisdiction over the city – this is only understandable, given the trauma that this city has endured over the past decades, as domestic forces seek to uproot Beijing's authority (in their eyes). The logical corollary is hence, we can have no 'party leaders' independent of the official party that governs the rest of the country – either one's in the Party (with a capital P), or one must accept the political and empirical reality that one must work with the Party. There exists no independent 'party', even in Hong Kong, without the P. Given this, to think that there would be a need for a genuine ruling party that can wholly decoupled from the P, would be somewhat naïve. ...