The Eucharist is "the source and summit of the Christian life."
No one is forced to be a Christian. But no one should be forced to live according to the "new religion" as though it alone were definitive and obligatory for all mankind.
“What is perfection in love? Love your enemies in such a way that you would desire to make them your brothers … For so did He love, Who hanging on the Cross, said ‘Father, forgive them, for they know not what they do.’” (Luke 23:34)
Those who with God's help have welcomed Christ's call and freely responded to it are urged on by love of Christ to proclaim the Good News everywhere in the world.
Evil too, will always be part of the mystery of the Church. And when we see what men, what the clergy have done in the Church, then that is nothing short of proof that he [Christ] founded and upholds the Church. If she were dependent on men, she would long since have perished.