The post you were responding to was saying "Atheists are far more angry than Theists".
I would try not to get caught up in a post like that, then post that you agreed, and thought many atheists were just as bad as fundamentalist.
If you're belief is people are capable of acting extreme in general, there are better ways to go about it, and better posts to respond to, that don't make it look like you are taking the side of an extremist.
This is what I wrote
"This is true,
many atheists tend to be as fanatical as other fundamentalists from other religions. No respect or open mindedness, just open hostility. I don't believe in many religious things, but I don't belittle everyone that does. Atheists tend to."
Every philosophical position has people which can act in an extreme way. But some philosophies can change and some philosophies are inherently dogmatic. Some philosophies are a lot less dogmatic.
A century ago the average muslim was more sufi leaning, now the average muslim is more salafist leaning. A few centuries ago the average Christian was war mongering, now not so much.
There are some philosophies which are generally benign, say for example Buddhism. Yet I've seen atheists attack Buddhism with the same sense of anger than they would attack Al Qaeda. The atheism of today isn't the atheism of Sagan and Asimov, it has changed.
I don't believe in a personal God, heaven, hell, angels and a whole slew of things. I've seen too much crap and suffering to believe in a personal God. Evolution and human induced climate change is a fact. But I don't attack some Christian kid cuz he believes his mom has gone to heaven after dying of cancer. I've seen an atheist do that while someone was in the middle of their saddest moment, and that really angered me.
What do atheists hope to achieve? Everyday millions of children are starving and thousands die horribly in wars. All that these people have going for them is a belief, whether imaginary or whatever. What exactly is an atheist trying to achieve by telling them that they're wrong? Will they feed them? Or bring back their family who was massacred? By telling them that they're delusional, you're removing one of the only things that give them hope.