No it doesn't work on him because of the damage he took from the helicarrier crash.He was clearly amped up.He even said so when Nat shot the bites at her and it didn't work.
That's like saying Thor isn't affected by a punch from a normal guy.It's not writers, it because he is a Fing god.
He was still in good enough shape to jump higher than humanly possible by a lot and kick of heavy jointed doors not unlike vault doors.He has a super-soldier formula.
Again Nat isn't a super-soldier.Even in comics where she is she isn't as strong as Bucky or Cap.She had Cap's shield and Bucky owned her and stole the shield back even though he didn't want to fight.
And my point is that she isn't as physical combat effective as the rest even by shear strength.Only one she is comparable to is Hawkeye.Rest are super-soldiers of much much higher.
Again there's arrogant and then there's stupid.He is a soldier with experience.
How was she nerfed In Winter soldier?Please Elaborate
The fact you think widow is a top 5 MCU movie shows your delusion in in of itself.
And glad to know you ignored my Hawkeye example.And you justify character assasiantion by saying it's not their movie... smh.