Jesus the Christ is the religion of Christianity. Christians are followers of Christ.
God...exclusionary? You are absolutely correct. God is not exclusionary. God gave His only Son, Jesus the Christ, that whosoever believeth in him should not perish, but have everlasting life. This offer is open to everyone.
Jesus is the anointed one from God the Father, who came to this world, died on the cross and physically rose from the dead. He died for the sins of the whole world. No one excluded! All God asks of us, is to accept His gift of everlasting life by believing and trusting in Jesus, ask Jesus to forgive you of your sins and receive Him as you Lord & Saviour.
This is God's offer to everyone! He excludes no one!