I don't see how mentioning that something bad has been done by a Muslim/a group of Muslims means that only Muslims do it.
It doesn't automatically, but context and posting history are also a factor.
Would you agree that a proportion of the media and public however do make that assumption?
You keep bringing up atrocities by non-Muslim groups (a lot of which happened decades or even centuries ago) as if I need a reminder that Christians and Hindus do bad things too, but that's not the subject at hand. If a news article simply reports on a Muslim atrocity, or someone condemns it because it's not the first time it's happened, it's not the same as saying only Muslims do it, and that all Muslims are either responsible for it or commended it, they shouldn't have to list every atrocity by every other religion in the interest of fairness, atrocities by separate religions are separate topics.
A lot of them are also current as well, but given that people will also bring up past issues as well then I see no issue with doing the same.
I stated my case as to why Islam receives a lot of criticism for actions done by its followers, I'm also not a relativist, I have no hesitation in saying in the 21st century Islam harms more people than any other religion. I could've gone on a massive tangent about the LRA or the Vatican sex abuse scandal if I wanted, but that would've been a bit strange when the topic is bad things in Islam and how to approach and deal with them.
Your post here actually to a degree illustrates exactly why the discussion does need to be had.
In this post you make reference to the LRA and Vatican, distinctions of sect within a religion, when you read about a Christian abuse scandal the particular sect is almost always made, almost every article I have read on the LRA either fails to mention Christianity or makes a point of highlighting that its a sect in Christianity with elements of regional animalistic culture. Growing up almost every article on the IRA, UDF, etc. made sure to cover the particular sect involved (well apart from Protestant ones - when religion was often not even mentioned). In other words an piece on the LRA
When it then comes to reports around Islamic terrorism this distinction is very, very often absent, particularly when it comes to the tabloid press.
As a quick example I used the terms 'Lords Resistance Army Daily Mail' and 'ISIS Daily Mail' and picked the most recent news article.
http://www.dailymail.co.uk/news/art...s-Resistance-Army-recall-lives-shattered.html
http://www.dailymail.co.uk/news/article-4263726/Terror-group-teaching-fighters-EAT-non-Muslims.html
Mention of faith in headline:
LRA: 0
ISIS: 1
Number of mentions of faith in main article (Christianity / Christian / Islamic / Muslim)
LRA:0 (2 if you include the side bar)
ISIS: 7
Now despite the article on the LRA being significantly longer the closest you get to a religious mention is in a box out, a long way down the piece when it says Kony 'Claim's to be fighting under Gods orders to build a society around the 10 commandments.
A discrepancy around the accuracy of the headline in the ISIS article also exists, in that it reads "ISIS CANNIBALS: Terror group are teaching their fighters to EAT non-Muslims"; now the body of text does clarify that its also includes Muslims who don't follow ISIS's view. However given that 80% of people do not read past the headline, let alone halfway down the text the impression is already given.
This is my issue with how the two approaches differ, with extremists from other faiths its either not mentioned, they are mentally ill, from a cult that can in no way be considered representative or if it can't be avoided then the actual sect is mentioned. Almost never is the entire faith put into a single homogeneous group in a negative article, and particularly in the headline.
In the case of Islam the exact opposite most commonly applies, sectarian difference are almost never mentioned or made, the problems of certain sects are turned into the issues of the faith as a whole.
Now I have no issue with regard to discussing the issues within Islam, but let do so accurately and look at which countries and sects within it are the root cause of this issue. Lets actually demand sanctions against them. Lets point out that its the Wahhabi's that are central to these issues, lets highlight the funding they provide to the terrorist organisations (who almost exclusively from the same sectarian worldview) and take action against them.
So I ask, why do you think this difference in reporting exists?