Are the Christian’s tribulations a hardship or a requirement?

When we read the bible we discover that in both the old and new testaments the true servants of God have suffered countless needs and sufferings, on the contrary, the modern Christian believes that God wants us to enjoy superfluous things just as the world does.
Sin is the great barrier to break down

Sin is the great barrier that we must break down in order to see God, the scripture says that whoever sins willfully, there remains no more sacrifice for his sins, but a fearful expectation of judgment (Acts 10:26).
Only the righteous shall inherit the earth

God has promised his people that they will inherit all things, but he specifically mentions that only the righteous will inherit the earth, so what will become of those who do not know about Jesus?