It would even be so rhetorically easy for him to reverse at this point:

My fellow Americans. I have said that the United States will always stand with Israel, and I have meant it whenever I said it. And in the same way that loving a friend sometimes means intervening when you see that friend doing something self-destructive, I have made the decision that now, standing with Israel means trying to save them from this violent and self-destructive course that they have set themselves on.

Anything like that. It would be so easy. The only logical conclusion is that he genuinely supports the genocide.