I literally (and I mean literally in the sense it used to have), let my not-insignificant head fall on to my keyboard as the idea of having to prove that men can be subject to sexism is ridiculous. Out of interest, can white people be subjected to racism?
You'll have to say a bit more about this - are you saying that young men are being discriminated against in the work place? In what way?
I don't think they're necessarily being discriminated against, I think the best men (or women) tend to be hired for the job. When people moan about the wage gap myth (against women), they talk about systemic issues. I think education is currently failing boys which is why, women are the best man for the job, post-degree. Now, if it were the other way around, I've no doubt you would be calling sexism.
Women are twice as likely as men to be hired when they apply for a role in STEM, more likely to be hired, more likely to have a degree and more likely to work in a graduate job than their male counterparts. Of course this changes at baby-making age around mid thirties, but until the point where life-choices come in to it, men are being left behind.
I would say that if it's sexism when you find disparities in the gender of any attainment and call it sexism when it favours boys / men then you must have to do the same when it favours women and girls. To not do so defies logic.
Toxic masculinity is damaging to men and women-but isn't it up to men to stop buying into it?
There's no such thing as toxic masculinity. I decided to walk away rather than address a comment recently where a couple of boys cried and got emotional when being given unconditional university offers. A girl watching the unnecessary outpouring of nonsense said "toxic femininity" to me. I've no doubt you're offended by this, but tell me why. Men and women are different in many ways and our differences should be celebrated. Deciding that half the population are toxic is a cuntish thing to do.
men seen as disposable in society
As fathers, yes. There was a thread today from an alcoholic who wanted to leave her partner but was worried he would fight for custody. The consensus seemed to be that she should and would win in a fight in court. I don't think it's fair to talk about specific examples, but men are seen as optional in many threads.
In wars.
On the titanic.
I think the titanic ideology of ladies and children first is completely relevant, despite it sounding slightly ridiculous at first. I think the notion of men coming after others is ingrained in society. I've never met a man or woman who thinks it isn't nor who wants it to be different. I think it heralds back to caveperson (wouldn't want to say caveman and be sexist) days when a sabre-toothed tiger would come. The man would defend and perhaps die doing so and the woman would be inside with the children.
In an scenario where a lady-MN'er was walking home with her DH and some youths approached them menacingly, I and I suspect anyone else would be disappointed if the DH didn't step in front of the lady, protecting her and ready to fight to protect her.