It doesn't matter because we wouldn't be here thinking about it. On the other hand, the extinction event would have been a gold mine for the future archaeologists that would have evolved on Earth in the next 100 million years.

You're right, let's NOT be thankful that we're still here.

What do you mean? You can't be subjectively thankful of something that you wouldn't otherwise exist to be the subject of. However, I'm thankful that everyone else is here, including you.

> You can't be subjectively thankful of something that you wouldn't otherwise exist to be the subject of.

Sure you can. You couldn't be disappointed if things had gone the other way, but you can certainly be thankful to have dodged a bullet.