Hello and welcome to RF.
I agree....but with some qualifications.....
Do you think the churches of today really "know" what Christianity is?
What I see them believe and practice is nothing like the model Jesus left. It was foretold that Christianity would be corrupted, just like Judaism (the weeds of Jesus parable) So IMO I don't see too many "Christians" today who know what it really means to call yourself a follower of Christ. (Matthew 13:24-30; Matthew 7:21-23)
It's not really a matter of just understanding "the religion", but more a matter of "knowing" God and his Christ and understanding what they require of us. (John 17:3)
Humans invented 'religion', not God. (what 'religion' were Adam and Eve?
) The only reason that God chose Israel as his people was to separate them from the nations who did not worship the true God. He gave them a unique set of laws and a unique way of worship that set them apart from everyone else.
What does it mean to "believe"?
James wrote....
"You believe that there is one God, do you? You are doing quite well. And yet the demons believe and shudder." (James 2:19) 'Believing' then has to be more than just accepting that something is true, because the demons believe in God, but they are sentenced to eternal destruction. (Matthew 25:41)
Perhaps "follow" would be a better word.
The apostle Peter wrote of Jesus......
"He committed no sin, neither was deceit found in his mouth. When he was reviled, he did not revile in return; when he suffered, he did not threaten, but continued entrusting himself to him who judges justly." 1 Peter 2:22-23)
He also said....
"In fact, to this course you were called, because even Christ suffered for you, leaving a model for you to follow his steps closely."
Following Jesus closely isn't just something you "do"...it is a way of life. A Christian is one 24/7....never off duty.
We have to remember that Jesus was perfect...without sin. We, on the other hand, find it difficult at times to maintain Christian standards because we are far from perfect. What are we to do then? Jesus' sacrifice makes it possible for God to forgive us on the basis of Jesus' shed blood. (Hebrews 9:22) This cannot be used as a license to sin, or taken for granted as an excuse to do the wrong thing wantonly; it is a precious gift that only truly repentant ones can receive. The sinning has to stop in order for forgiveness to be given.