As far as I remember, my grammar textbook states that we use 'wish + would' to show annoyance or express complaint about some situation.
I wish you would stop smoking. (it makes me sick)
It also states, if we want to say that we are sorry or regret something, we can use 'wish + V-ed/2'
I wish I lived in London. (but I don't)
Let's say we regret that a certain person smokes, why can't we express it with
I wish you stopped smoking (but you don't) ?
I've tried googling it, but, unfortunately, there's no clear explanation on the topic. Could you, please, help me understand it?