Muslim countries are far too old world to fit in without adopting their new home's culture.
The flaw in this logic is that most muslim countries(ones that aren't war torn, at least) aren't as stereotypically extremist as you think. I keep seeing people here say "so many neighborhoods full of dudes with no women in sight" when that isn't even true in the shithole that is Saudi Arabia. Hell, Syria recently went to shit, so did Egypt(not as much as Syria) but claiming either country before forced women in burkas and kept them inside is laughable even if you go back further in decades. Saudi is objectively worse when it comes to that and even then, evolved a bit in the past few years where many don't even cover their face or hair anymore. There's plenty of Saudi immigrants, or Visa students and workers who assimilated to outside culture pretty much right away.
So yeah, I do point at racism when I hear this. Because most of what I hear comes from a place that doesn't have much if any knowledge about the Middle Eastern world. I'm not surprised that extremists have spread into European and North American countries, hell religious crazies of the Christian sort have and still exist there in greater numbers, but pointing at all immigrants or using the crazies to as an excuse to shut off any immigrants from these countries coming in is suspect. Especially from people who argue for free speech when SJWs bitch about white supremacists.
Your problem is that you take criticisms of issues in a region and a religion to be rejection of all people from that area and religion, thus you can point out some counter examples and claim it's racism. That's bullshit and you know it.
You're from Saudi and I'm not. K. How about an end the guardianship systems in Saudi? How about comparing that to the western world*. That a huge gap. It's not racism. That's a major difference that reflects other ideas in that culture.
See, I don't agree with banning all immigration, but I don't know how many really do. The point has been that the system in place is too open and causing a problem. Assimilation into the new country is a problem. (Which is, again, one of the criticisms of multi-multiculturalism: that it doesn't encourage or value assimilation as well and at times vilifies** it.)
Racism as an accusation serves no use or purpose in the discussion. Observe the problem, understand the problem and fix the problem. When someone says the problem is the damn sand people then it's racism. When someone says the problem is cultural clash and immigration policies.. it's not racism and something that can be addressed.
*To be fair to you, as far as I know, your time with and views of the Western world are heavily spent in Saudi and American college campuses, so your idea of the west is going to be shit-tier, easily manipulated and out of touch.
** Some of the 'progressive' left hate Asians for assimilating well. A weird practice where you critique and ethnicity for progressing when others haven't in the name of what you call progressive politics. Yeesh.