All scripture, including the one you quoted here is true. However, if you consider all scripture, there are plenty that contradict your interpretation of this particular passage.
Take for example these two very simple verses. There are many others, as I posted earlier, but for now these will do.
Psalm 115:17
The dead praise not the Lord, neither any that go down into silence.
Psalm 146:4
When his breath departs, he returns to the earth; on that very day his plans perish.
So I assume that you believe these to be true, just as I believe 2 Corinthians 5:6-8 to be true, otherwise there's no point in continuing to debate with somebody who does not believe the Bible to be true.
So if on the one hand you have scripture that says you return to the earth when you die, and on the other hand you have scripture that says "to be absent from the body and to be present with the Lord", which of these two more definitively explains what happens when you die?
Keep in mind that 2 Corinthians 5 does not even mention death, yet my two examples do clearly mention death. You could infer death from the words, as you have obviously done, but you have to admit it doesn't actually mention it.
So do you take two clear passages that need no interpretation or inferencing, or do you explain them away while accepting your own interpretation of a much less clear passage? And if so, how do you explain them away?