Wait you seriously think in a final Tottenham stand a chance against Manchester United?
Tottenham has their class of players and same as Manchester United but in a game like that United will be victor. To be honest if United make it to the final I feel like they would be the winner. They might have some mid players and are inconsistent but don't forget they are still a top team, more dangerous against big teams and on matches for trophy. Remember how they won a domestic trophy(Fa cup) last season against Manchester City.
Both team got much to lose, I wish them the very best but there can only be one winner.
I see that you are a united fan but you have to face the reality on ground that United is walking on Old Glory that they are not the same United team that used to dominate the premier League so if Tottenham and united meets in the finals both teams has equal chances of winning the trophy between Tottenham and united I don't even see the difference that both teams have because currently speaking both teams are in the same class and level so united is not better than Tottenham by current form
Calling me a Manchester United fan is like an insult because I'm forever a blue

. London is blue and to me we are the best team in London but thanks to bad management other London team are raising their head up high.
That aside, you can't give same odd to Tottenham Hotspur and Manchester United for either team to win if they meet in the Europa League final.
Don't forget Manchester United have a rich history and still find a way of winning trophy in recent seasons but in the aspect of Tottenham, even in their best performance in over a decade now they still are unable to lift a trophy.