On what authority do you assert that active evangelism ought not to take place on church property or in a church building?
Nowhere did anyone say that evangelism does NOT take place in a building! also includes the Holy Spirit.
And let me repeat this also:
But we as individual are to be centered on Christ Jesus and when we are, then His love and His gospel will flow out of us like Living Water. We went down this same road earlier that you never addressed. When you do, then perhaps we can continue, but I don't see any Godly reason to do that again until that happens.
In the meantime, I pray that all will come more and more to a better knowledge of Christ Jesus our Lord in their lives - yielding their will unto His.