There's nothing wrong with discernment, which all Christians are called to exercise. Without it, soon you will have a Christian religion that thinks loving one's neighbor is all important, and in loving him, then we accept all his idiosyncracies, all his false beliefs, and next thing you know we're all singing "We are the world" and "Imagine" with the Dalai Lama and Cheepak Dopra" Abd hawking "Get rich" books on Oprah and Larry King.
And I'm afraid this is exactly where the church is headed.
The "New World Order" church is already here. But
thanks to the ACLU any prudent and instinctual tendency
to be INTOLERANT has been litigated out of our DNA.
I am a fundamentalist Christian. The Word. The Word.
The Word. It is my job as a grounded believer to be a
net for those who are attracted to church by "feel good"
preaching from the likes of Warren and Schuler.
We (you and me) need to catch those babies, teach them,
get them on meat as soon as possible and get them standing
on their Gospel feet.
Loving one's neighbor is all important.
However, let's be clear how we define the verb "to love". It's not synonymous with "to accept," for example. Nor is it synonymous with "to tolerate without objecting".
To love someone is to desire their authentic good. If you believe in objective moral or religious truth, persuading someone (charitably!) to order their life in conformity with that truth is an act of love, because a life lived in conformity with truth is always going to bring one closer to authentic good than a life lived in conformity with error.