Fulfill OR Abolish

Why are people sinning like crazy? Why are some Christians going against the Scripture and allowing sinful people to openly act out their sinful behavior in the name of Christian Love without sharing Jesus' love and showing them right from wrong. Yes Jesus told us to love our neighbor as ourselves. Does that mean that we sit back and watch others corrupt their hearts with sin because we are so full of sin? Our Christian compassion for others should be concerned about their eternal soul not condoning the sin but having compassion for the sinner, relating Jesus love and sharing what He has done.  Christians have become complacent in a sinful world afraid of backlash from family and friends. What is the problem here?  It is the confusion of fulfillment vs. abolishment. 
​Some unlearned people, even in the ranks of our Christian Brothers and Sisters, do not understand there is a big difference. When Jesus said He came to fulfill, He did not mean that all the laws are now abolished and we can openly sin and be saved if we believe in Him. NO.   This has led to many preachers who do not even touch on preaching from the Old Testament (OT).  In my research I saw an article that states Jesus has ended the OT Regime. This I cannot agree with fully because the Old Testament is historical as well as spiritual. In his defense, he could mean the Davidic line, which is true, but if taken literal he is negating the need for preaching on the OT.
As I said above, Jesus said that He came to fulfill the law and not destroy it. This caused some people to believe that they could sin all they want and Jesus would cover for them on the Day of Judgement. NEWSFLASH: That is not how it works.  Jesus fulfilled the predictions of the OT prophets that a Messiah would come. He fulfilled the ceremonial law by which all OT offerings had ever pointed, this was accomplished by His becoming the final sacrifice for sin. He came to fulfill the moral law, by yielding to it a perfect obedience, which we could never have yielded. He showed us that living a moral life IS possible.  He paid the penalty for our breaking of it with His atoning blood, which we could never have paid. Once again fulfilling the moral law does not mean we have been given a license to accept any immoral behavior (anything that goes against the morality laws to include stealing etc.) as accepted, it is a sin period. Nor does it negate the moral law. In fact, He executed additional authority of the moral law over us. If he abolished the law then don’t you think in His humanity (since that was our example for right living), He may have joined us in sin? Had He done that, He would not have been the pure and spotless lamb, and the sacrifice would have been all for naught.
As for the Ten Commandments: Christ’s arrival did not change the position the Ten Commandments. If anything, “Do we, then, nullify the law by this faith? Not at all! Rather, we uphold the law (Romans 3:31)”. The law of the Ten Commandments is God's eternal measure of right and wrong. By it, we have a better understanding, (knowledge) of sin. By it, the Spirit shows men their need of Christ and drives them to Him. To it, Christ refers His people as their rule and guide for holy living. In its right place it is just as important as "the glorious gospel." It cannot save us. It does not justify us. However, we must never despise it. It is a symptom of an ignorant and unhealthy state of religion when the law is lightly esteemed.
We are to “Delight in God’s Law” and follow it faithfully. God told Joshua to “Keep My Word on your heart” and “Do not turn to the right or left” keeping straight in the letter of the law without modifying it to meet the needs of the people. Brothers and Sisters, we have allowed that to happen. Our leaders and society at large have forgotten the truth. Jesus is the fulfillment of Scripture as He is the Word of God Incarnate. This does not mean we are to ignore the OT portion of the Bible.  He came to us to ratify His covenant with the world with His blood, not reject it. What have we done to keep our part? What can we do as the Body of Christ to make it known?