Can we talk about Nasus?

Scroll to the bottom for tldr

So I've had, more than my share of games now, where my team is winning the entire game. We secure absolutely every objective, we take the first towers, the first inhib. Work together to ace the enemy team countless times. Even go as far as to start warding roaming areas so we can set up and attack their team. You know? A good game. Everything is going fine, until fucking Nasus shows up.

It never seems to matter how coordinated my team is, how well we work together. If they have a Nasus, anything after 40 minutes is their game to win. We can try to burst him down, sure, but then their ADC, Mid, and Jungler will be left to burst us down. And we can't ignore him either. Not when he has enough Q stacks to 2 shot our Adc. Essentially bulldozing past everyone, being tanky enough to do so, and just slap his Q down on our poor ADC. It feels like absolute bull shit to me.

Either we focus Nasus, and get cleaned off by his enemy team. Or we focus his team, as you would in any other situation, and get picked off by his Q. It seems like the only way to beat a team with a Nasus is to be skilled enough to not only burst down his team, as quickly and efficiently as possible. But to have enough health left, and enough team mates left, to survive his Q smacks.

What's worse is, he can just tank our towers and crush them with his Q. So his team doesn't even have to worry about tower diving. They can do so and won't be punished for it. Which I feel is even greater bull shit.

Then now only are we forced to defend. But if any one of our team mates is killed, by say poke ults, we're done for. We can't 4 v 5 them. Not with nasus around. The game is over.

Tl:DR - Whenever I face a nasus, anything Early-Mid Game doesn't matter. He's always going to win Late game if his team is competent enough.