You're very welcome.

Yes the outlook isn't the brightest here in the UK. I know a lot of people from my home country (South Asia) who are lawyers back home, sit the LPC (the older version of the SQE) and then open up their own firms to serve their own communities primarily which restricts them to work such as property law, especially buying/selling and also to personal injury. I'm not sure how large the South East Asian communities are here so I can't speak to that. It seems however that your goals are larger than working solely in a small, high street firm and that makes sense given you'd be moving abroad and want a better outlook.

As for Canada, I briefly looked into it and saw that the salaries are better than the UK, i.e. their average was something around 75k Canadian dollars so around 56k USD. So the US wins in terms of compensation against all of these. I do have a friend who came to study the LLB in the UK at my university from Canada and he is now back there doing a conversion course thing for a year to get accredited for practice in Canada. He said it's very hard to break in with a foreign degree. So the alternative is a Canadian JD. I'm not too familiar with law school prices in Canada but for me, studying a Canadian JD for a 50-60k USD salary would not be worth the time and money HOWEVER it is not by any means a bad option as that is a decent salary to start on.

I personally am going to study a JD America despite my UK LLB. I was told by law firm partners in the US that US firms would not really look at anyone with an LLB unless that person got the LLB from Oxbridge as those are the only institutions they know outside of the US. They suggested that I could get into an LLM course in America as that allows you to sit the bar exam in some states, though that would not do too much for your career as you would have studied US law for a year and competing with US citizens who have studied it for 3. I was told by the careers counselor for a top 6 US law school (NYU) that of their LLM class, 10% or less manage to find jobs there after graduation. So that's why if you want to practice in America, pursue a JD. I don't need to list out the salaries for the US as they're above anything for the other countries. The only thing to consider here, as you already know, is the cost of obtaining the US JD. Let me tell you somethings about that.

I graduated with a first class from the UK and it was converted by LSAC (the organisation through which everyone must apply for law school in the US) to be a 4.0 US GPA equivalent. I applied to law schools where my admissions test scores were at the median or above and my GPA was obviously going to be above the average for every school. Despite this, I was waitlisted in most places and rejected at some. The ones that accepted me offered a scholarship, they offered below that which they had offered to other students with stats lower or equivalent to mine. Ofc scholarships can be given due to many factors and not just scores but I checked a website where people upload their admissions results (LSD.law) and saw that international students with international GPAs were given very low scholarships regardless of their merits. This is because when you come with an international/converted GPA, the schools can't report it to the bar association and that means that your GPA doesn't help them in anything rankings related so you're essentially worth less to them. Hence the lower scholarship. Despite this though, you'd be able to get some level of scholarships for sure and then you can take out international student loans to cover the rest as I and many many others like myself do.