Megas are abominations because they
1- Draw members from local communities which need churches and ministry.
2- They foster unaccountability because not only can the Pastor not know all his people- they cannot know each other.
Megas are popular only because Pastors at them earn huge undeserved unjustifiable salaries but because people enjoy feeling like Christians especially if they can live as they please and no one knows it because no one knows them.
Megas make desolate communities and desolute desolate lives. They are abominable and those who construct and occupy them are equally guilty.