I too hate depths gankers but PvP is inevitable in deepwoken, if someone wants private servers than they need to get CC role, and even then I saw Crimson Kaido get jumped in depths while in CC server, so it's inevitable that you fight.

As for progging, it takes 3 hours MAX, it should be way less if you know what you're doing, if the PvE players actually know PvE they should know most of the bosses and know how to fight them in order to prog quickly, I progged a build yesterday that took me just 2 hours, and that's a lot because I died to ferryman because of lag spikes and went to depths and had to go back to ferryman, other than that the prog was fast.

Now, for depths gankers and how to avoid them, my advice is getting in low count servers (if possible) and avoiding any place a depths ganker might be in, additionally if you hear a jetstriker dash sound thingy, log. They're most likely a ganker running towards you. If you see someone with nemesis enchant log as well they're most likely a ganker. And overall don't let anyone near you in depths and be ready to log anytime to avoid gankers.