Why are AD assassins so weak?

respectfully disagrees with the title of this thread

They aren't weak... They can't kill tanks easily because they stack armor to deal with the adc though. They still kill squishy champs easily and they can split push unlike ap assassins. Different strengths for different champs.

By the way, I don't think Twitch is much of an assassin anymore. That was only ever his secondary role, and his burst/stealth has been gutted. He seems like mostly an aoe adc now.

Try ganking the Jungle with your Jg at blue right at level 2. Being an assassin doesn't mean your OP, it means that you have an ability to ruin people's fun.

Because they aren't.