"The tush push is a rugby scrum modified for use in the NFL."
The tush push utilities other players pushing the ball carrier forward. A rugby scrum employs players pushing their teammates forward.
M-o-d-i-f-i-e-d. The NFL would automatically disqualify players locking arms.
Both employ driving against their opponents.
M-o-d-i-f-i-e-d. The defense would not object to a tush push play, intentionally putting the ball on the ground, which is part of rugby.
M-o-d-i-f-i-e-d. Rugby players do not block players. Blocking occurs during every football possession.
Not trying to convince anyone. This is only a one-time response to any future disagreement concerning my thoughts on the tush push.