I came here looking to solve a slightly different issue. I see two things that don't match my setup. I followed the same guide. 1 is that you set www as a cname record with your domain. Mine is setup as an A record with my IP address. 2 I don't have the letsencrypt ssl certificate, maybe delete that one and see if it makes a difference.
If you or anyone else know how to allow your domain.com to redirect to a youtube video with all of this security on please let me know.