I'm not so sure that even if you found a T that gave you uconditional positive regard (and I am guessing this probably looks different for anyone), that your specific attachment "issues" wouldn't come up. At the crisis center I was at, one of the T's said that whatever problems we were having out in the 'real world,' we would bring into the therapy room as well. And she was right. With both of my T's, I think they are warm and validating, and yet all of my abandonment triggers still get triggered despite that.

I hope that makes some sense