Before wading into one of those discussions and proclaiming how you aren’t offended and they shouldn’t be either stop and ask yourself if you are actually a member of the targeted group. Because let me tell you, a guy not being offended by sexualized or marginalizing depictions of women isn’t shocking. A white person not being offended by the treatment of a minority group isn’t headline news (unless it’s The Onion). And a straight cis individual not offended by something directed towards the LGBTQIA community isn’t even the slightest bit world shattering. At best if you are an outsider saying how you don’t think the thing is offensive then you just look uneducated and/or unempathetic. Yeah, that’s the best you can come off looking.
Alright, take for example if you don't know how an internal combustion engine works. You know gasoline goes in, a little somethin'-somethin' goes on, and then the car goes. Are you seriously going to get in an argument with a thirty year veteran auto mechanic about their opinion on a style of carburetor? If you are, is your reason for thinking your opinion should trump theirs because -
A) you are male and they are female?
B) you are white and they are non-white?
C) you are a brilliant and beautiful snowflake who is a gift unto the world?
If you choose A then you're sexist. If you chose B then you're racist. If you chose C then either you're lying about A or B, or you're just too stupid to live.
For real, one of the most important things to learn is the limit of your understanding. One of the saddest things I've come to know is that educated people often come across as less confident because they know that they do not and simply cannot know everything, but the arrogantly uneducated can come across as supremely confident because they are too stupid to realize how stupid they actually are. Back on point, if a man thinks he can know what it's like to live the life of a woman more than a woman knows, then that man is either sexist (feeling his opinion is always superior to a woman's) or he's too stupid to know that he can't know it. If a white person in America, especially a Christian white person, thinks they know what it's like to be a minority and persecuted more than, say, people that actually are minorities and persecuted, then seriously die right the fuck now you stupid fucking fuckwit fuck, with a fucking cherry on fucking top because you truly are too damn fucking stupid to live.
You want to know what the most offensive thing in the world is? To be told that your feelings aren't valid by someone who has no understanding or respect for your life experience. That is the single most offensive thing in the world.
And while I'm saying this I have to admit I really TRULY dislike boiling everything down to "us versus them" or "insiders versus outsiders." It just feels like lazy oversimplification to me. But the fact of the matter is that we as human beings, all of us, have limitations on what we can understand, and the more you think you know EXACTLY what it's like for people outside your circle then the less you probably actually know.
So, yeah, maybe you're tired about hearing how one group is offended by a t-shirt sold at Wal-Mart, and another group is offended by some sports teams' mascots, and yet some other group is offended by something else you think is equally sillypants. But just step away and squelch your desire to say something snarky or proclaim how since it doesn't personally offend you it shouldn't be an issue. You know, unless you really want to demonstrate what a stupid and/or shitty person you are.