I'm not 'against' trigger warnings per se. I just think that they're ridiculous. Sure, you can say 'trigger warning' to notify someone you're going to be speaking about something harmful, but this just isn't representative of what will happen outside school. No one is going to treat you like a fragile flower vase when you're outside school/uni. People simply aren't going to say 'trigger warning' before any opinion they have that may be considered remotely offensive.
Someone on You Tube was even putting trigger warnings in their description due to discussion of food, because someone watching may have had anorexia or bulimia and the word 'food' might trigger them. This censorship thing is getting a bit ridiculous.
What's the worst thing that's going to happen to you if you're in class and the teacher doesn't say trigger warning before talking about slavery in America? Are you going to have a panic attack because you're so emotionally unstable that the word 'slavery' sets you off? Now think, what will you do when you're out in the world, past uni, and someone mentions the word slavery. Or 'food'. Or 'abortion'. Or 'murder', or 'death'. Are you going to have a panic attack every time you hear one of those words?
Rather I think it's more important to deal with the situation head on. Why hide behind trigger warnings? It's treating people like precious snowflakes who need mollycoddling - 'watch out, here's an opinion you might disagree with!' Different opinions and discussion of difficult topics are a part of life. It's important we expose people to them without prefacing every single idea that may be offensive with 'trigger warning'.
What is the real world? Are you speaking from experience in it?
Trigger warnings... I'm a big on being understanding re: mental health and personally, I don't understand them and can't empathise because there's nothing for me to be triggered by. That being said, isn't complaining about it and getting offended by their presence just, stupid?
If, as a lecturer, I hVe to say "btw all, discussing abortion in this lecture, so TW"... even if it is the case that there's no evidence to their benefit... who cares? No one is worse off. Not one single person is worse off for that 5 seconds, but potentially, there is a person or a small collection of people who could be fantastically better off.
Doesn't seem like a political thing to me, just seems sort of basic like, who really gives a fuck if people are warned about triggers? If you're more upset by that than by the potential for people suffering from PTSD to have an episode, or people to otherwise feel severe discomfort that might have been lessened, then I question whether your motivation for arguing against them is coming from a rational place, or coming from a place of baseless grumpiness for the sake of it.
Edit: screening for swearing is absolute trash and disgusting puritanical bs
Again, not upset with trigger warnings. And I'm the last person to be offended over everything. I think getting offended over someone else's views is ridiculous and indicative of a need to 'man up'. Oops. Sorry. I might have offended someone. I meant, 'gain strength mentally'.
See, the thing is, now we have to tiptoe around everything we say for fear of offending someone. Yes, things will offend you. Yes, you may not like what someone else has to say. But you're going to have a very difficult time if you get offended so easily that you need trigger warnings.
Also, while I disagree with your opinion.. I admire and appreciate your willingness to offer it 
Thank you! Also know this isn't a personal attack on you or anything...sometimes I know it may come across that way

EDIT: yes, Brenden's right, disagreeing with your opinion here doesn't mean we don't appreciate it or you 
Thanks heids

I don't think sheltering or not talking about issues is the healthiest way to process them socially. Sure, some authors write things unsympathetically/unhelpfully, and they should be avoided, but you can deal with triggering issues in an edifying way. Also, schools have the power to decide which texts are appropriate for their specific demographics.
Agree with the first sentence but not the rest - I don't believe 'unhelpful' and 'unsympathetic' views of a topic should be avoided. They should be discussed - how are they insensitive, perhaps? What effect do they have on the reader? etc. It is important to be exposed to material that results in a variety of feelings, not just those that we are comfortable with.
I agree that schools have the power to choose which texts are appropriate etc., but I don't think this is the way it should be. Schools should expose their students to a wide variety of views and opinions and choosing specific tests that are 'appropriate' for thei demographic is not the way to go. If I lived in rural Australia I would not want to read texts on the issues of rural life all the time - some texts about issues in big cities and other areas are important to read too because who knows, the student may go live in a demographically different area than where they attended school and due to only reading books 'appropriate to their demographic area' they may not be exposed to life in these new places.