Interesting points
@Komododragonjesus . After thinking about it some more IMO the decision as to weather to 3bet really comes down to:
1)is our opponent aggressive
2)how well we we can play the turn and the river i.e is readable or passive
i.e We're going to make some big folding mistakes if he's an aggressive player or some big calling mistakes or if he's passive and we're not good enough to lay down turn and river.
Under the fundamental theorem of poker we should be maximising our opponents mistakes whilst decreasing our own.
By raising our opponent makes a mistake by folding an OESD and we don't because we're ahead of his c/r range. Once called we're marginally behind his range equity wise (how far depends on c/r frequencies) but we benefit from making fewer mistakes on turn and river because we've narrowed his range. He's not going to be bluffing against our super strong range. So we should be able to check turn and fold rivers. So basically we're wiping out the power of the semi-bluff by forcing him to play passively minimising our mistakes which is where his EV comes from with a semi-bluff.
Assuming the player is aggressive by calling the size of our mistakes are larger than his as he can represent many scare cards and we fold incorrectly; we also call incorrectly on bricks as he can have better 2 pair and sets. By 3betting we don't make mistakes because we're ahead of his c/r range. We then then also force him to play passively thus not making mistakes on turn and river.
If however we our opponent isn't aggro or is very readable calling is far better as he we won't be making mistakes post-flop and he will be making big mistakes. So keeping ranges as wide as possible is very beneficial.
Let me know what you think to my theory.