I think your logic is sound. You are better in a place, where you already know people, have some friends and family, than going somewhere where you have nobody.
I did that once, in fact I went abroad for a very long time, and it was probably the biggest and most expensive mistake of my life, when I got back I was in depression.
I have found that SA does not really depend on location or your work place, or the groups you meet. If you suffer from it, it will get you anywhere you go. The problem is internal, it manifests in your behaviour and people form impressions about you from it.
Sometimes, you get lucky, and meet the right people. It could be, where you go, there will be more accepting people, but most of the time it is the same people. Besides, you could find those accrpting people at your place as well, if you try and find them. They are a rare breed to find.