I understand your argument.<quoted text>
You're arguing for an "absolute morality" which, according to you includes "love God".
First, I would argue that there is no such thing as an "absolute morality" as all morality is defined by humans.
Even ignoring that, any "absolute morality" would by definition have to be applicable to everybody, including Buddhist, or it could not be considered "absolute".
So, your argument for any "absolute morality" fails on at least 2 levels.
Oh but that's right ... you're just making stuff up.
But it is however absurd.
You cannot define anything unless you have a standard to define it against.
So what "standard" do you define "subjective morality" with?
Really try to think about this question, so far it seems you have not understood it.
You have to appeal to an ultimate standard, to prove any standard.
With morality, what is your ultimate standard?