It's the legacy supply chain that's causing this talk.

You've got companies who have made cars for a 100 years. They have supply chains dating back almost as long. It's really hard in a personal, business and political sense to say "sorry value chain, you're redundant" to people and companies your company has been in business for longer than you've been alive.

There are whole industries who aren't just needed any more when electric engines become more commonplace. Most of them can pivot to making something else, but some can't or won't.