There are those who will never believe. - No amount of effort on the part of others will be sufficient to bring these individuals to the Lord. - The Lord knew at the day of creation who these were, just as he knew who would believe.
Are you asking if I believe that there is no need, or purpose for evangelism? - I do not. - I believe that we are tools of the Holy Spirit, and follow his leading. - When people are 'led to the Lord' it is not our doing, but the Holy spirit working through us. - We cannot lead someone to the Lord at will.