I think it is a mix. I don't think Chinese students rank faculty in blackface or the response by the administration as a factor in deciding to attend, nor football. I think the surge in foreign enrollment is on the downswing in part because of better alternatives at home, as you say. But the cuts here are part in response to current levels of enrollment but also in part to the anticipated further decline as discussed in the article I linked to above, which does have Trump as a factor.