Quoting Jackson 3 + 2:" I think you answered it pretty good with free will being the main point. The only thing I would add ... [snip!] ... wouldn't you rather your kids, family, or friends choose you because they love you and not because you made them to love you?"
I would absolutely want my family and friends to love me because they had reasons to love me and not because I went through whatever means to "make" them love me artificially, but the metaphor between that and
what the Christian god asks of us is different.
Supposedly, we live in a smurffy world because of sin. The only way to get something better than this smurffy world is to love and worship god.
That is NOT unconditional love. No one can love him unconditionally if the only reason to love him is so that they can achieve something better.
(Of course, I am only approaching this literally. I do understand that there are many, many Christians that love god simply because he's given them a chance at life. I DO believe however, that the mentality stated above is present in most Christians.)
That is like putting my family and friends mentioned above through a difficult situation to test their love for me.
That is never okay. Love with conditions is never okay.