Change aria-label on YouTube blocked content notice?

Hi,
currently, when a user does not have respective cookies enabled and a YouTube video is embedded, the privacy notice on the YouTube video is not screenreader accessible.

A screenreader announces only “button, YouTube”, not the actual text content (“Please enable marketing cookies to see this content…”). This is probably because the button HTML has “aria-label=”youtube”, which is then read instead of the button content.

How can I change the HTML of the blocked content button (via filter etc.) or, if that is not possible, can you fix this and make aria-labels editable?

Thank you very much,
Tina