Giving suggestions

Hello everyone, I've been playing LOL for about two seasons now and there has always been one thing that has bothered me. More often than not I am in a game and some of my teammates are making less than desirable decisions. It could be that they feel they need to engage in a 2 v 4 in the enemy jg and wind up feeding, not focusing objectives, etc. So I often try to suggest things in order to help correct some of these things. I dont flame anyone but will say things like, "Hey guys we should really stay away from engaging in their jungle just because its unwarded and it can go from a 2 v 2 to a 2 v 4 really fast". Things of that nature. However I find myself constantly told to "stop telling everyone what to do". I know the community can be toxic but is there any other way I should go about this? Is it just because I am in bronze/silver? I only play ranked btw.