@designsimply, thanks for being willing to listen to our plight!
I, like so many others, have lots of sites with various plugins, custom widgets and premium themes. In one particular case, The Divi theme from Elegant Themes would not allow any posts to be created and edited. This was caused, as mentioned in a support question, by the Gutenberg editor not having the depth and breadth of testing with all the themes and plugins.
As a result I had to revert back to the working classic editor and the deadlines of my customer’s writers were saved. Could have been catastrophic had no reversion been available.
From the 1000 other 1 star reviews is seems that the decisive majority agrees that this “feature” is not ready and not welcome; especially in a forced acceptance scenario by including it as a core component.
Hopefully, you will understand my frustration and understand why so many are caught off guard and angry with a feature not ready for prime time.