To pretend that the Brits “leased” Hong Kong like it’s a mutual transaction and not because of colonization and the Opium wars is utterly idiotic.
The Brits had a choice when they funneled Opium into China in exchange of silver. They had a choice when they pointed a gun to the Chinese for taking the New Territories.
The Brits had a choice… is it a moral choice? No… but they had a choice.
The Brits taking Hong Kong from China is a huge stain in history. But to pretend that Brits are going to have any say after giving the territory back - also sounds ridiculously stupid.