sorry about the downvote... :( I forgot this is not YouTube and downvotes really matter. I forgot I could not take it back. I wish there was something I could do.
I honestly feel terrible and especially after I wrote a disagreeing comment previously. Please accept my apology and in the future if there is content I do not like I will just move on with no vote (as I should have done this video).
You should be able to remove it. Just click the flag again and then change it to an upvote.