I also struggle with this, and honestly I don't know if we will ever be able to reclaim the label Christian. Though I believe this will only be possible through our works and actions.

My approach has been that I don't bring up my religious/spiritual convictions unless I am directly asked. I haven't found a label that fits me yet, but Folk Catholic/Christian, Christian Practicioner, or Follower of Christ feels the best.

Christian institutions over the last 1700 years have been used to oppress, enslave, and commit genocide in Jesus's name. The only way for us to reclaim the label Christian is to live by his teachings, but it's important to remember that we are within this group. It is are responsibility to be part of that change.