The Rock's daughter -- NXT Superstar Ava -- says her inbox has been flooded with hate over WWE's new storyline involving her famous pops ... claiming she's been on the receiving end of death threats over the whole ordeal.
Wrestling fans have been up in arms following Dwayne Johnson's appearance on SmackDown last week ... with many criticizing the move as it seemingly derailed what was brewing between Cody Rhodes and Roman Reigns.
Ava is seemingly catching strays in the process .