Most offensive?
Hope and Change
Puh-leeez… 
I know someone who had an Obama sticker depicting him as a spear-clutching witch doctor. They recently got rid of it.
:smack: Wow.
Four stickers from the late 60’s, two of which offended me.
(American Flag, with text): “America - Love it or Leave it”
(American Flag in flames): “America - Change it or Lose it”
(Peace Symbol): “The Footprint of the American Chicken”
(Swastika): “The Footprint of the American Hawk”
About as clever as the “Buck Fush” stickers back when. I saw one just the other day on an old Volvo.
The one that I find most offensively over-the-top: Christians Aren’t Perfect, Just Forgiven. Makes me want to vomit every time.
How come? Was he an editor? 
That’s a lot to put on one bumper sticker, isn’t it?
On a big lifted truck with jingoistic, patriotic, NRA and other wise anti-liberal stickers… the one that i found particularly offensive was " Jack Er Up! Fat Chicks can’t Jump"
On another truck, with 'Murican Flag full window sticker…
“One Big Assed Mistake America”
I saw this one a few years ago “on your knees bitch”
In the 1980’s I saw “AIDS–It’s killing all the right people”.
During the 2012 campaign, SUV with one that said “Don’t renig”
Yeah, spelled that way.
It was hard not to just slam into the idiot.
I unfriended several people on Facebook for saying exactly that.
“God won’t bless
a country that
kills it’s children”
In case anyone was wondering, it’s the apostrophe that pissed me off.
???
Years ago I had a Stupid People Shouldn’t Breed bumper sticker.
Those who maybe should have been offended didn’t understand it.
ETA:
I’m A Necrophile And I Vote. ?
I took this a totally different way. To me it says to stand in front of them, in battle. If you can’t stand behind them, then fine, you fight first.
That’s horrible. I nominate this one, for most offensive in the thread.
Somewhere in the attic I still have my “Necrophiliacs For Shapp” t-shirt and buttons. Those were the Good Ol Days! 
(It was basically an anti-campaign and involved bars and alcohol all across the state. And it was a lot of fun for us younger people.)
The problem with all that is, there’s been no safer time than now to be a cop in the U.S. anytime since the 19th century, if then.
In the past three years, 350 law enforcement officers have lost their lives in the line of duty in the U.S. The last time the numbers were that low was in 1958-60, in a U.S. with just over half as many people as now.
I will add that only 138 of those 350 deaths involved an officer being shot or stabbed.
Yes, police deaths matter. But we know that their job is a hell of a lot safer than it was not so long ago. So even if this wasn’t an especially inappropriate time to make an issue of it, the fact is that there’s no issue there. Police safety has been improving for quite some time.
Trying to get someone punished for expressing an opinion is much more offensive than any sticker somebody could put on the back of a car.
(Re: “If you can’t stand behind our troops, feel free to stand in front of them.”)
I took that to mean, the fine, stand in front of them and get shot first.