The man referred to in the OP is thirty, has four children and his academic qualifications are described as Diploma in Psychology and CBT.
He set himself up as an expert on estrangement. Iโd be looking for a therapist with better recognised qualifications and wider knowledge base. The article refers to him as an influencer.
One of my extended family had what can be described as a difficult childhood. Abandoned by dad, mum with huge difficulties, lots of upheavals, broken attachments and more. They are now a joiner aged thirty, recently married to long term partner. Recently when reflecting on childhood, they commented - I used to wonder why they (parents) did these things. Growing older means I recognise they loved me, did the best they could.
Not a therapist but a young person maturing into a stable, sensible, compassionate adult. I donโt feel it helps to make your living by blaming your mum for everything