[slothario]

I'm assuming you mean you try to give people honest feedback, but people object to it because it's too harsh?

It's completely possible to honest, assertive and kind at the same time. I see this false dichotomy all the time: "be honest and make enemies" or "be silent and watch a project tank." There's a third option: be frank and kind. (And yes, there are environments where no form of honesty, gentle or harsh, is welcome -- smile, put in your 40 hours and try to find employment elsewhere.)

If you're constantly angering people with your honesty, the problem is not with your honesty but with your people skills. You need to cut the pity party and take a hard look at your communication habits.