
Yes, Obama and Trump are both political figures, no one is debating that. But there is a difference that is being pointed out. And its not the obvious one, that one is president and one is former.
Obama and Harry have worked together. With the IG. And now with Obama's new projects. They actually have a relationship even if a working one.
vs
Trump is simply president. Harry met Melania once but not Trump. They have no actual connection. If Trump was invited, it would be simply as president.
If you are going to invite Trump, simply as president of the US, then other heads of state of trading partners should be invited. Obama on the other hand is not being invited (if he is) because he is the former president. He is being/maybe invited because of a working relationship with Harry. This is the obvious differentiation.
Its like inviting the Trudeaus or not. They would be invited not because Justin is PM, they would be invited inspite of that. They would be invited due to the relationship between Sophie and Meghan.
Besides working with a former president does not have the same implications as a sitting president. There is no concern of undue influence put by the president 'due to friendship' on a member of the royal family.
Co-workers are just that, co-workers and they are the people who work on the job with the friend whom ever that is, they to me are not personal friends that come to say my home for dinner or to play cards or Monopoly or shot the breeze over wine or beer.......Harry has the type of personality I think where he enjoys the events and loves getting out there meeting people and helping, yet after the event it is home to peace and quiet and calm and a loved one, cooking dinner, or take out whatever the case may be..........seriously doubt if he brings co-workers home with him to have dinner or play video games. I would like to think that would be his *private time for family and very close personal friends only*, not co-workers, business people or even staff that works on all the back up work for the charities. Even royals need *private time alone* to gather their strength to take on the next event and read all the info before hand.
That's you and good for you.
Many people think beyond who they would play video games with. As mature adults, many of us see we have different parts of our life. Work, home life, family, friends, and they are all important. It is very common when you have a larger wedding, to invite co-workers and other people like that. No you aren't going to invite your hairdresser, but the person you work with and have raport with. As we saw with Prince William, there were not just the required guests (the royals, the heads of commonwealth and such), family and friends. There were also people William knew through his charity work and his military time. Do you think celebrities like the Beckhams are personal friends? No. I would be shocked to not see some for Harry.
Even with the extended Windsor family and Meghan's family that will be invited, that's maybe 150 people. Plenty of room for friends, co-workers and such. I see no one debating Meghan will invite some of her Suits co-workers. I don't see how that is different.