Olaf has no counterplay

"Just CC them". This is the argument used to counter pretty much every champion. Too bad this doesn't apply to Olaf. Olaf has a reputation for being a horrible champ after his rework, but this couldn't be further from the truth. Yes there are a lot of noob Olaf players out there, and this has created the illusion that Olaf is bad. But when you have a team that helps him overcome his biggest weakness, or an item that gives you a ton of mobility (lack of a reliable gap closer), Olaf is literally unstoppable. As we all know, Olaf can't be cc'd, so the only counterplay is to burst him down ASAP (but this applies to all champs, and not just him). I see a lot of people complain about Riven, Darius, Garen, etc. But the difference between Olaf and these champion is that they actually have counterplay. Yes they scale extremely well, and the resets and true damage are annoying, but it's actually possible to kite them if you slow them, and they will suffer if you hard cc them.

Don't listen to me though, I'm just an unranked noob who clearly has no idea what I'm talking about. So please tell me, what is the counterplay to Olaf?