Fair enough, and in this instance you are probably right that their motive was reasonable. In most cases that is going to be true. Pick a Muslim at random and he is likely to be quite ordinary. This isn't about judging these particular Muslims, but about explaining why people are reluctant to allow a strong Muslim influence on their daily lives.
It would certainly be unfair to suggest that all Muslims are terrorists. However it would be fair to say that they all believe Allah to be the one god. If not then they are not actually Muslim at all.
You could go further and suggest that all Muslims believe they must obey Allah. Perhaps this wouldn't be quite 100% - I don't know, but it's not an unreasonable assumption.
Since we know that no god has ever given orders to anyone we can read that as 'believe they must obey their religious leaders' Such religious leaders must either be irrational themselves to relay imaginary commands from on high or be deliberately misleading their flock for their own ends.
The Islamic religion/culture contains a mechanism by which those leaders can order the murder of individual or groups anywhere in the world and which takes precedence over local legal systems/sovereignty.
We frequently hear those leaders saying that Islam/Sharia law must spread to cover all countries.
We frequently hear (now this might be a minority or not - I don't know) UK Muslims speaking as though their first loyalty was to Islam and the countries it currently controls and not to this country.
Those facts taken together do not justify a 'blame Muslims for everything' attitude, but they do justify countries being wary of a growing Islamic influence.
Most of the above applies to Christians too. You could write a book (many have) listing the atrocities the Christian churches committed and encouraged down the ages.
If you count the old testament as history than the Jews were pretty into wholesale killing and conquering in their day.
The only reason to be (slightly) less worried about Christian influence is that these days most are barely religious at all - except on Sundays or when it comes to special privileges.
I'm led to believe (I may be wrong) that Muslims are on the whole (and at this time in history) more devout and more willing to put what they see as right before their personal interest.
Some reasoned arguments here, but what throws reason way out of the window is the incidence of the suicide bomber. Not since the desperate kamikaze pilots of WW2 Japan have so many people offered their lives to kill others for their cause.
Even accusations of 'cowardly attacks' such as those leveled at the IRA and loyalists during the 'troubles' of Northern Ireland don't wash because giving your life for your god, although undoubtedly stupid and misguided, certainly isn't cowardly. It is only Islam that has spawned such abominations, therefore Islam is seen to be the reason for them.
There is no reasonable answer to such attacks since the perpetrators are dead if they succeed, therefore the threat of punishment has no meaning. It's the scariest thing ever perpetrated since WW2 and THAT''s why people don't like Muslims. Unwarranted guilt by association maybe but that's human nature for you.
Swiss businessman builds minaret in protest
http://www.google.com/hostednews/afp/article/ALeqM5jEtHJMaOboide2wITSxabVwvHTYg
But is it really a minaret or just a chimney extension made to look like one?