Has it come to the point where you can't even help some one out?

I recently played a game as zed mid in ranked, and my team wasn't doing so great. So I was trying to help out some of my fellow team mates by telling them what they did wrong and how they could improve. In no form or way as I trying to be a dick or mean, but it got to the point where I was starting to get flamed for talking. My team kept telling me I was being toxic even though I seriously wasn't, and it just got annoying as hell. It could be they were just trying there best and got pissed off at me for "telling" them what to do, or maybe they were having a bad day, but its seriously annoying how you can't even help anyone with out them getting pissed of at you for telling them they did something wrong.