My parents won't allow me to make a youtube channel.?

I'm a sophomore in high school and have had 2 previous youtube channels and was planning on making a third. It was going to be a political/conservative commentary channel (please don't make this a political debate). They are worried about the videos that I would be making be posted on their forever (I also cannot get a snapchat, Instagram, or Facebook for the same reasons) and that my views will change as I grow older. I told them that I understand both of these things and that it might actually be a benefit when applying for a job, but they really don't care. If you look at my other questions, there is another about controlling parents. Is there anything I can do to persuade them in any way that I could create this channel with my friend?

Thanks