The Duke of Sussex, 36, worked two frontline tours of Afghanistan during his 10 years in the British Army.
Instead, the couple said that the Taliban takeover and ensuing chaos had left them “speechless”.
Mr Rae explained: “I thought it was very cheap to put that statement out.
“It would have carried a lot more weight if it was just Harry.
“It has nothing to do with Meghan!
“Harry has a good insight because he has done two tours of Afghanistan which he served with distinction.
“But I don’t know about using 200 words to say I’m speechless about what is going on.
“I don’t think the people of Afghanistan or anywhere else will take comfort that Harry is worried about them.
“The royals themselves don’t actually get involved in political matters like this.
“They tend to stay quiet. It is very rare for a member of the Royal Family to say something anywhere near political.
“If anyone should have made a comment, an expression about what is going on in Afghanistan, that should be down to the Queen.
“The Queen has expressed views on international matters throughout her reign. It is not down to Harry to do that.”
“As we all feel the many layers of pain due to the situation in Afghanistan, we are left speechless.
“As we all watch the growing humanitarian disaster in Haiti, and the threat of it worsening after last weekend’s earthquake, we are left heartbroken.
“And as we all witness the continuing global health crisis, exacerbated by new variants and constant misinformation, we are left scared.
“When any person or community suffers, a piece of each of us does so with them, whether we realize it or not.
“And though we are not meant to live in a state of suffering, we, as a people, are being conditioned to accept it.
“It’s easy to find ourselves feeling powerless, but we can put our values into action — together.”
Source: EXPRESS CO UK