It is sexual assault. And he's not just condoning it, he's bragging about it, and he does so because he knows its wrong. He knows he's only getting away with it by intimidation because of his wealth and position. Intimidation and coercion are not consent.
It doesn't help anyone that its getting played down as anything but that. Worse, there was a major Sunday Newspaper referring to the woman in the tape as being "The women who could keep Trump out of the Whitehouse". That was the headline, and she'd done literally nothing, but it was like it was her fault?