Is the Gospel Too Idealistic to Work? (Lk 1:1-4,4:14-21) (3OT)

The Gospel is a lofty ideal. It seems that it is not practical and does not really work. All those things Jesus said like; 'Forgive your enemies', 'Pray for those who persecute you,' 'Sell your possessions and give to the poor,' 'Your Father knows you needs, seek first the Kingdom and all those things will be given to you', 'Cloth the naked, feed the poor, welcome the stranger,' 'Do to others as you would have them do to you,' 'Turn the other cheek,' these things really don't work in the real world do they?  Yet Luke makes it clear in his Gospel, that Jesus does mean all these things, and we must still follow the Word of God.