Thankfulness is not ignoring problems. It's picking up the good things even on a problematic landscape. Cliche? Yeah, but look at this nuance:
I can lament and be thankful at the same time.
It's not an either-or situation. I don't have to be ALL grateful, I can also mourn. There's room for both. I can allow myself this beautiful inner motion, not just hold myself to the harsh "it's all good" position. This may save me from the spiral of reality-denial when it gets hard.
I am thankful …and so many more things.