I feel like hitting myself on the head for not fully realizing this before. Tbone on RFM was speculating on why conversations with believers tend to get ugly, and I had an epiphany, which I will share here.
You sure it's not just a spot of gravy or a bit of rancid meat.....lol
I've totally given up on discussing Mormonism with Mormons.
Here I am; though admittedly I prefer scriptural topics.
With very rare exceptions (believers who are genuinely liberal, not the faux-liberals you see on internet LDS boards), it is just too personal not to get ugly.
If by liberal you mean political liberal then you just aren't getting the LDS perspective as a liberal in that sense is always going to carry beliefs that are in opposition to LDS doctrine.
Exbelievers, out of the rest of the gentile world, know the church better than anyone else - and flat out rejected it. Mormonism isn't just a religion, it's a life, a world-view, so when you flat out reject Mormonism, you have rejected THEM.
Knowing you've rejected the Church is no insult to me. I simply chalk it up to the Parable of the Sower.
I think this is why so many believers do not seem to be able to differentiate between criticizing the church and its leaders and criticizing the believer personally. They feel attacked when the church is criticized because they can't separate themselves from the church. So they attack back.
I will most certainly counterattack. But not you personally, just your opinions and misconceptions. Isn't that what you want?