Obscene and offensive license plates are a different issue.
Your rights are not compromised in any way because DC won't let ONE SINGLE PERSON have a license plate that reads "FREEDOM".
You don't live in DC,anyway.
Anyone can put FREEDOM on a bumpersticker. Why is putting it on a license plate some sort of restriction of rights?
There was a court case, believe it or not, over some guy that put black tape over the slogan "Live Free or Die"on a NH plate. He said he preferred live over all other alternatives, which is certainly his right. But some cop had other ideas, and gave him a ticket, which made it to the Supreme Court.
He won the case. Now only MOST NH people express this sentiment, most of them unaware that they are doing so, on their license plates.
License plates are not about freedom. A truly free person would refuse to even pay for one or put it on his car. This would be unwise.
I prefer "Wander Indiana" as a license plate slogan. Indianians, it seems, did not.
In Florida, we advertise oranges and sunshine on our plates, unless we pay extra.
Here are some banned FL plates, including I HVA GUN and BDAZ VET. You cannot hacve SHERIFF on your plate, even if you are a sheriff.
http://www.sun-sentinel.com/news/local/crime/sfl-rejected-florida-license-plates-pictures-2011,0,5501545.photogalleryAll manner of rights seem to be violated here for you to be outraged by.