This sounds AWFUL, even for an Alternate Reality/What If version. Also, as a surplus, Magneto BLACKMAILED the UN into giving him the country. The UN just agreed because they didn't want Magneto to do anything else. He was still a wanted terrorist, so even discounting the UN thing, it doesn't make sense that they would just hand her over without any reservations.
This was the What If? Disassembled issue... and it was actually really good, honestly. At the end of the issue, Dr. Strange does his due dilligence, and discovers that if the Avengers hadn't caught on to Wanda not having the skills to destroy the team so efficiently, things played out exactly as they did in the normal reality. When you add in Bendis showing Cap as having weird blackouts during Civil War and him doing some genuinely ruthless stuff for him during that scenario, I'm convinced that he was, in fact, helping Wanda subconsciously due to a growing mental instability that, ironically, got fixed when the Skull decided to break him the way he did.