NFL star Jalen Ramsey basically spoke for everyone Thursday night when J.R. Smith brain-farted at the end of the NBA Finals ... questioning how the hell Smith screwed up so badly!
With the game tied, Smith got a crucial rebound with just seconds left in the game -- and instead of taking a shot or passing it to LeBron -- he tried to run out the clock, forcing the game into OT.
And you know the rest of the story goes ...
Jalen Ramsey was so baffled by J.