I'm happy to do that. First click on the link that you originally posted. When that opens up, cursor down to the bottom of the page and click on the YouTube button:
Highlight and copy the shortened url.
Last, you must remove the 's' after 'http'. The youtube tags only work if it's http:// not [url=https://]https://[/url], and exactly as your link is above with youtube.com/watch?v=gobblydeegook of letters and numbers only. If there are additional weird characters before or after the letters and numbers (as in the link below), all of that must be removed.
It also won't work if it's a mobile 'm.youtube' or 'youtu.be' link.
Notice how the xKy2lLNQYrI is the same as in the link that works with the YouTube tags? That's the important part.
Won't embed:
"Now, more than ever, the illusions of division threaten our very existence. We all know the truth: more connects us than separates us. But in times of crisis the wise build bridges, while the foolish build barriers. We must find a way to look after one another as if we were one single tribe.” -King T'Challa, Black Panther
The truth is incontrovertible. Malice may attack it. ignorance may deride it, but in the end, there it is. ~Winston Churchill