I haven't replied that email yet, he is not my supervisor yet I am contacting potential supervisors from different universities for the next year. It would be nice to work with him but at the same time he directly said my methodologies are not in his area so he can't be my supervisor, so I am not sure if I should insist, and how I should say it.

In my proposal, after explaining the research question I had in mind, methodology part only suggests that I will follow a comparative approach and conduct surveys, I cannot understand why would an experienced supervisor would say those are not in his area. Or do you think it means he simply does not want to work with me? Should I reply and suggest I can change it? (which is something I really do not want to)

I am planning to send my proposal to potential supervisor before formally applying, however there are 3 different professors who have the exact same research interests in their profile and all of them would be perfect for my proposed topic. I do not want to send it to the school for them the forward it to a random teacher for initial opinion. Would it be rude if I send it to more than one potential supervisors, what if they find out?

I'm currently doing my law masters abroad (in UK) and so far I am really enjoying research and discussion, which is so different then undergrad level. When I spoke with my advisor he said it is possible to do a PhD in our school, which would save some time since it is a familiar place and they already have all of my documents. However he said Russell Group Universities (which is supposed to be Ivy League in UK?) do not give any teaching opportunities to people without an actual PhD. So hearing that I will not interact with any students and just research on my own and pay a lot of money without earning any real job experience made me question my decision. My advisor openly said it is unwise to do PhD without any teaching and I should do it part time and look for jobs in universities in the same city (and I looked - there are none) or get professional qualification to have some backup plan. The problem is I am from a civil law country and qualifying as a solicitor here would take extra 4 years, it is not even a logical plan to spend 4 years on my back-up option. I really want to stay in this city and continue in this established university but I don't know what to do, what if I am not cut out to be a lecturer in the future?