Yep. If you go up to a cart selling 5 donuts for a dollar, and hand over a dollar bill without saying anything, no one could think that dollar was a random gift. And if a stranger just handed you a dollar in the street, you'd refuse because of course they're trying to get something from you.
There is no scenario where someone personally enriches the President without it constituting corruption. The problem isn't that his financial corruption is debatable, it's that it's so blatant, and has been so totally ignored, that all people can do now is try to justify it.