The parable of the virgins indicate that they entered the marriage simultaneously. There’s also a verse that talks about Solomon “in the day of his espousals”
While it would, the word “overkill” comes to mind.
What is needed is a change of heart, a return to holiness. Without a reverent, holiness mindset, people are just playing the religion game. Creating rules for the game just isn’t going to solve the heart problems.
This shows that "concubine" is simply a subset of "wife" ("woman"). All concubines are wives (but not all wives are concubines), and it is entirely appropriate to call a concubine a wife, because she is a wife.
You can call people to repentance every day of the week and twice on Sundays, but without revival it’s just a method of shaming them without producing anything righteous.That won't happen. For that to happen people need to be called to repentance. Which requires calling a spade a spade, or a whore a whore. But you objected to that approach already.
Bilhah is labeled as both in different passages... Gen. 30:4 and Gen. 35:22 Although it would be the other way around first labeled as his woman and later as his concubine...