It proves he supports them, simple as that. It proves just as I (and Trump himself) told you that he wants to work with them. It proves he supports their efforts.
I have not said that by the way (underlined). Now you're just making stuff up, that's what grasping for straws is. I think it's rather you that want to have it both ways, but you can't. That's why you squirm around the issue.