Not at all. I'm curious to know if that is a fair representative of Christianity.
When Christ walked the earth he:
1) Was baptized, commanded baptism in his name.
2) Forgave sins
3) Said he was the bread of life, and that people should celebrate the Last Supper in remembrance of him.
4) Taught God's original intentions for marriage
5) Sent the Holy Spirit upon his disciples
6) Appointed/Anointed Twelve Apostles to continue his work
7) Healed the sick and dying.
The early Church set up a ministry that revolved around these actions and teachings of Christ. They came to be known as the seven sacraments.
Fast forward to the Reformation when Protestants chose to remove observances such as Confession, life-time marriage, priesthood dating back to the anointing of the Apostles, the Sacrament of the sick and dying, Confirmation (anointing by the Holy Spirit). In other words, Protestants announced that Sacraments were a "Catholic thing" and Catholics had gotten everything wrong.
Catholics lives and ministries continue to revolve around these seven mains ministries and teachings of Christ, so yes, Catholics would say that the Sacraments are an accurate depiction of what Christ did and taught (i.e. 'Christianity').
However, many non-Catholic Christians are still convinced Catholics got it all wrong, and they would be quite offended to hear of Sacraments being associated with 'their' Christianity. That's how Catholics do things! Not all Christians!
