I think one of the problems that men are faced with, is that were frequently made aware of the abusive aspects of pornography and all is not as it may seem in a pornographic image / movie. But at the same time, we are also bombarded with other views telling us 'yes, exploitation can exist but there are plenty of women who are 'happy' to enjoy being part of pornography'. That's a message that happens to suit men very well, because for most men, that's what they want to believe (with good intention). They WANT to believe it's done willingly.
When it comes to the more extreme sexual acts in pornography, it becomes almost impossible to believe it's consensual (to anybody with a brain), but for what is now deemed 'mainstream' (watching someone masturbate, or have vanilla sex) it is so convincing that everybody behind the scenes is rosy and all parties are perfectly consenting. That is where I think pornography is so insidious. It is evidently so convincing that women want anal sex, or women want to give oral sex - and if they don't, then either there is something wrong with the woman, or there is something wrong with you...
The 'lie' is so damn convincing, it's making people truly believe their own sex lives are atypical, and all the seemingly nice guides on how to improve your lovemaking are actually just reinforcing the notion that your love life needs improvement (ergo, it's not up to scratch).
if 10 women here say they do not like anal sex (just using that as an example), and 1 woman says she does enjoy it. Most men will focus on the one that does - because the other 10 are offering him an inconvenient truth he doesn't want to believe in, whilst the other is offering him a simple confirmation that actually, it's ok. That's also another reason why pornography does so much damage, because most men won't be sleeping with countless women. So for (say) 10 women in their real life who weren't keen on something, they can find 100 on a pornsite that look as though they are. That then convinces the men that they've just met the wrong 10 women in their personal lives.
It sounds pitiful when presented like that, and perhaps it is, but it's a real issue pitiful or not, and unless something can break this cycle of pornworld -> man's imagination -> woman who doesnt conform -> back to pornworld, then things will only get worse.
I hasten to add, I also believe young women are now getting sucked into the porn trap too. Because they are being told by men that they are not adequate, and thus young women are looking at porn to discover what they need to do to be adequate.