I don't do official PvP because of those turret walls. Turret lag prevents creative metas.
You can fit 100 turrets in a 67 block diameter. With the new turrets you can have 100 turrets at 4-5 times the strength. So that is the potential fire power of 500 turrets in a 67 block radius. That is some solid fire power. Just need to be smart (new building metas!) and force raiders to funnel into your death trap. You can also use dinos in some pretty effective ways to melt tanky dinos.
Here is an idea that can help you with your "not enough turrets" problem:
-Create a fatal funnel
-Centralize all 100 turrets just beyond fatal funnel
-fill fatal funnel with ankys (stack health and damage, this will mitigate brontos at the least, as they tend to get stuck on a wall of ankys) and create death blossom traps filled with hyenas and daeos.
-Create outer perimeter with concentrated turret towers (not one giant) if you spread these out you can deny avenues of approach
-arknet (alternating layers of open hatch frames) to deny drops.
-build Phoenix, golem, and thorny dragons (any other turret dinos?) towers to further deny air drops (I recognize that these may not be effective at killing most flyers, however, any damage they can apply to target means survivors can drop the target)
This game (in PvP) is all about resource denial and being effective with what you have available. It's too easy to create a wall of garbage that a raider won't waste C4 on when there is a fatal funnel they can go to. And if you make the wall of garbage well, they will waste more resources going in then they will get from the raid.
You will always face the potential of being raided. The trick is to learn how to make would-be attackers waste their supplies (and time) with little to no gain.
And stop whining. Adapt and overcome, yo. I could at least understand whining about the "survivors only" setting for turrets as it instantly made most dinos useless.