How can I bulk delete users?

My site got hacked and I had an online service clean it out. However, it now has over 150,000 user accounts, the bulk of which have no role assignment. How do I delete these accounts and their content?

PS: Drush solutions are appreciated and welcome, but for now I would prefer non-Drush answers.

I tried suggestion 1 at How to delete 'blocked' users in bulk? but both options are time consuming and the VBO module seemed to hang. Suggestion 2 seems to be the fastest option, but the /core/modules/user/user.admin.inc file doesn't exist in Drupal 8.7.

I just had to do this recently. I found the easiest thing was to build a list of the emails addresses to remove in a text file.

_remove_user_emails.txt

[email protected]
[email protected]
[email protected]

Then process them with the simple script below:

remove_users.sh

IFS="
"
pwd
for user in `cat _remove_user_emails.txt`
do
  echo "Cancelling user: $user"
  ./vendor/bin/drush -y user-cancel ${user}
done

You can derive your list however you'd like. I often use phpmyadmin and just write a query for what I need and export it. Something like this:

SELECT DISTINCT u.mail
FROM users u
LEFT JOIN users_roles ur on u.uid = ur.uid
WHERE u.uid > 1
AND u.status <> 0
AND ur.rid IS NULL