Example: "My encounters were with Tablighees who stay several kilometres away from internet (some uses for official purposes, perhaps it's Halal to use internet for official works, but Haram to visit Islamic sites!)."
Every unbiased reader will sense some sort of "malice" (hope the word is not too strong... English is not my first language) towards these brothers. Which also manifests itself in the fact that you don't seek for a clarification of their claim but rather for a refutation. So, I can imagine that your discussions with such a quite prejudiced mindset will be very fruitless. I understand that your only desire is to raise awareness and concern for the recent plight of the Ummah, but one of the most important things our Ummah needs right now is unity and it begins with each one of ourselves. So, if you want to do the Ummah a favour learn how to deal with people compassionately and without prejudices although they might be of a different opinion, or even ignorant.
"A man convinced against his will: Is of the same opinion still." - Dale Carnegie (and others)
It doesn't mean I'm saying criticising Arabs is wrong, I share your sentiments and that of Muadh Khan above... But I think you'll have to find another way to successfully engage with others... Again I did not want to offend you, but just had to get this off my chest... and yes, no one asked me for my unqualified psychological analysis... Sorry... (you can hit the dislike button now ;-p)
Addition: The problem by the way is not caused by the distortion of any laymen, but the impression that Arabs can not be criticised and have to be respected unconditionally has been caused by narrations found in classical Hadith works, like these:
حب العرب إيمان و بغضهم نفاق
Although most of these have been classed as extremely weak and by some even as fabricated, there exist dozens of narrations in the Kitabs with this notion. And even if these narrations would be accepted, one was to clearly differentiate between the Arabs living today... especially their leaders.