So I just read through this whole thread and noticed a few things that need to be addressed. First of all, francis brought up an important and good point that loving your neighbor and loving God are inseparable and go hand in hand - therefore Paul did not misspeak when he said loving your neighbor fulfills the law. What I was surprised at though is that in the 5 pages so far I haven't seen a single mention of 1 John which clearly addresses several of the issues raised so far in this thread. Read very carefully: "If anyone says, "I love God," yet hates his brother, he is a liar. For anyone who does not love his brother, whom he has seen, cannot love God, whom he has not seen" (1 John 4:20). Also consider "Anyone who claims to be in the light but hates his brother is still in the darkness" (1 John 2:9) and "No one has ever seen God; but if we love one another, God lives in us and his love is made complete in us" (1 John 4:12). The point francis made is perfectly theologically valid as we can see from 1 John.
Secondly, Elijah, you said some people seem to think that they can continue sinning whereas you emphasised the point of Jesus telling us to be perfect. This also is addressable from 1 John. But first if these people truly believe this then they are so deceived that it is pitiable, even laughable, if they indeed think that sinning is "alright" with God. However unless you misunderstood them they could have been making a different point that even as Christians we will inevitably still sin. Jesus' command to be perfect is indeed a command but one which even while striving for we will fall short of sometimes. John addresses this when he says, "If we claim to be without sin, we deceive ourselves and the truth is not in us. If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness. If we claim we have not sinned, we make him out to be a liar and his word is not in us" (1 John 1:8-10). It is possible they are trying to articulate that idea rather than saying that it is "okay" to sin. But if they are really asserting the latter then their claim is baseless and ridiculous. No one in the BIble says this, and certainly not Paul! Someone skipped their reading lesson in Romans 6 if they think that. "What shall we say then? Are we to continue in sin so that grace may increase? May it never be! How shall we who died to sin still live in it?"
I hope this addresses the various questions and issues set forth so far.
God Bless,
~Josh