WSOD by creating types: Limit of 32 chars exceeded when creating machine name ID with too much characters

WSOD on entity bundle admin paths and Drupal database update path with error
Drupal\Core\Entity\Exception\EntityTypeIdLengthException: Attempt to create an entity type with an ID longer than 32 characters: reusable_entityreference_bundle_type. in Drupal\Core\Entity\EntityType->__construct() (line 299 of core/lib/Drupal/Core/Entity/EntityType.php)
is caused by user input while creating a new entity bundle with too much characters for the machine name ID.

Drupal core API declares a maximum of 32 characters for machine name IDs but it cannot prevent a bundle of calls and requests which hook into Core API to do things half the way before this limitation prevents the group of calls and requests to go any further. The database table config row is already written and will break the whole site.

I started discussing the idea how we can make Core API more rock solid in this manner to prevent this, but this is not an easy task and possibly an impossible one, since the Core API can not know what the ID creation is part of, until we invent a certain group logic which checks against all parts of the group of events first.

Until then we have to fix this on module level IMMEDIATELY otherwise ECK runs in a bunch of user reports before it even has reached second beta.

So we need to change the order of requests and calls grouped by the user input for entity bundle or entity creation to prevent WSOD when the step creating entity bundle ID with too much characters occurs, otherwise we get this error on a state when ECK already did "things", before the process gets interrupted by this character limitation and the Drupal project database is broken and we can only repair it manually.

And we need a machine name input autolimit and check in the very first step of course, to assist the users input, who do not realize that machine name gets created automatically by giving bundles or entities a name. And to start with a fast fix we should add a warning on entity bundle creation page and entity creation page that the user should check the length of the machine name first before hitting enter (early work-around).

The error occurs on both: dev and latest beta.