Yes, I do. I think the world would be a better place if there were no Microsoft, Adobe or Oracle. We would still have OSes and databases, we would be fine.

If I couldn't use the AGPL to force Amazon to release Elasticsearch, but they couldn't use normal copyright to force me not to reverse engineer Alexa and Widevine, would it be that bad?

It wouldn't be bad. We have more than enough resources to reverse engineer most software, yet we're restricted by arcane EULAs and DRM.

And so much "FOSS" is MIT anyway. Abolishing copyright would make literally no difference to MIT-licensed software.