Welcome to EvC!
I agree with you in that arguing makes most Christians look stupid.
I consider myself a Cosmological Creationist. I believe that a Creator initiated and created matter. How this was done is unimportant to me.
I believe in a personal and knowable Creator, and I believe that knowing Him is many times initiated by Christians. (In other words, He uses us to introduce His Spirit)
For that reason, I believe that everything we (as Christians) do or say is interpreted as the fruit of our religion.
For that reason, I essentially agree with you that our message should not be to focus on
scientific things.
Look at the forum we are at, however. People are drawn to an Evolution versus Creationism Forum to discuss science, by and large.
Theology is not the main focus at EvC.
Thats my 2 cents worth, anyway.