Its not a "belief". It is a Biblically supported doctrine. Beyond all refutation.
This doctrine in NO WAY diminishes the passages you quoted in the least. God IS love, LOVES the world, LOVES ungodly fallen men WHILE THEY WERE YET SINNERS. No doubt about it. God also calls men to repentance and has throughout the ages. Men respond to this calling and receive their salvation, which is the full, ultimate final expression of the love of God.
There is no conflict here as far as God is concerned. All of this is reconciled in the infinite mercy grace and mind of God.
Well again, I don't see it. Not with the verses I shared in my last post. I believe Christ died for all because that's what the Bible says. But we do agree on the point God loves the sinner. But how can one say God loves sinners if He created them to be that way. Sorry, still get stuck on that idea.