Those reasons are not ideological and there's a new proposal that doesn't have the downsides of the original spec and enables new use cases discovered since: ht

Those reasons are not ideological and there's a new proposal that doesn't have the downsides of the original spec and enables new use cases discovered since: https://github.com/WICG/webcomponents/issues/1029 https://github.com/WICG/webcomponents/issues/1029 Nothing with customizable built-ins would give you what the original commenter asked for