My idea is to take the URL from this <link>https://youtube.com/?v=WnfN-l6eSUs</link>
and use the string WnfN-l6eSUs
with the wordpress video plugin as [youtube WnfN-l6eSUs]
. That will display as a video. WordPress video plugin can be found at https://www.daburna.de/blog/2006/12/13/wordpress-video-plugin/
So someone has to figure out how to extract that key from the url and write it as a format accepted by the wordpress video plugin.