Referring to this as data seems a bit suspect. Where is it?
Perhaps I should have said information.
The existence of objective truths is just the logical out-workings of believing in a deity. It is a reality apart from myself.
An abstract reality that cannot be contacted, clarified or verified, and thus not justified.
You never addressed my question. You also presumed that the end goal must work towards equality, freedom, etc. Where do you obtain these fundamental ideals? From nature?
From nurture as opposed to nature. It is life experience that shapes our views. While biology may influence us to an extent, I don't believe it is the determining factor; I don't see us as pre-programmed biological computers, helpless to our code.
As I said, the end goal I suggest is my own subjective opinion, based on subjective values.
Considering how vocal 'the New Atheism' is, you should have equal issue to the imposition of this group of people as you do to Christians.
I'm unaware of 'New Atheists' advocating impositions on others. I'm unaware of 'atheist values' being enforced by law.
Being vocal is not an issue, passing laws is.
Introducing the concept of freedom just makes it even more complicated. According to the chairman of the Reason Project, Dr. Sam Harris has said more than once that free will is completely illusory. How you can ever judge anyone's actions is beyond my understanding (to my knowledge he hasn't updated his numerous statements on the matter).
I disagree with such a view. Perhaps from a very high vantage point one could suggest that, in terms of general societal interaction, but on a basic level I believe people are accountable for their actions, and can be judged on their actions with the belief that they control them.
If an atheist were to disagree with your ideals, why are you more right? This question is different for an atheist to answer than a theist because a theist starts from a position of "objective truth exists". You are starting from a position of "this is just my opinion".
I wouldn't necessarily claim to be more right. As I said, we would need to see what our ultimate goals are before choosing the best course of action.
How an atheist proves that this is even possible is my question
How? By simply examining the situation and indicating relevant factors.
Two atheists are in an empty room. They agree on a common goal of having dinner, but there is no food. What to do? They both agree that getting food is the first step. Now, how to do it? One suggests going to the store. One suggests ordering in. Which is better? You consider relevant factors. Do they have to get up early? Ordering in might be best. Is money a concern? Going to the store might be best. What if eating healthy is most important to them? Then maybe going out of town to a health food store, which will take more time and money but give healthy food would be best. None of these is
inherently best. There is what's best based on the factors important to them.
Weighing the pros and cons of various options leads to a "best" option.