To add onto what Husky said(I swear I'm not continuing this trend to meme), keep in mind that the hiezan temple shoulder and ring, as well as gollux rings and earrings, are once per character. If you're playing reboot it's absolutely vital that you know this. If you blow them up with starforce, you will never get a replacement.
And yes, we're all acutely aware of how ridiculous that is, but nexon doesn't seem to view it as being a problem.
Definitely aim for maxing out crit damage. If only because there are so few sources of it compared to everything else. Crit rate you should be fine for now.
Stockholm syndrome. If you truely don't enjoy the game, just quit.
I already said the reason I'm still playing is because I spent a lot of money and I have people online I can socialize with. If even one of these two reasons don't exist, I would quit the game completely.
I don't care about the rest of your post, so I'll respond to this. These are two of the weakest arguments I've ever seen for continuing to play a game you profess to hate that's run and maintained by a company you also profess to hate. Your first reason is nothing more than an example of the sunk cost fallacy. Your second reason is easily circumvented by the likes of discord, skype, etc. Find the people you socialize with ingame and get them onto discord, add em as friends or make a server to talk amongst yourselves in. There, one of your two reasons to keep playing has ceased to exist. Goodbye!