Execute this command (replace URL with the video you want to watch):
youtube-dl **URL** -g -f 43
This produces the link that you can copy into your browser for direct streaming from google (which is what hooktube does), and you don't need to use an alt-right site.
EDIT: The -f 43 refers to the format.
You may want to use -f 22 for a better quality MP4 version. You can get the list of available format codes for particular video using --list-formats. This is the youtube-dl guide on formats https://github.com/rg3/youtube-dl/blob/master/README.md#format-selection
Static HTML/js edition - https://radtube.herokuapp.com/?v=K7ngGOlna0A