Well, it depends if the content that you're currently producing on YouTube will have a direct impact on your future agenda. You shouldn't be ridiculed for having a hobby, and if someone finds your channel in 10 years time; so what? As long as your content couldn't be deemed as being offensive or unethical, there's not much they can say about it. Some people play tennis, some people drink, some people collect stamps, you make videos. It's just like any other interest; and I can't see it impacting a political career very much unless you broadcast opposing views on YouTube to what you preach IRL.