If you insist they give up their culture immediately you will be seen as trying to take away their culture. Just like how gun rights advocates perceive attacks on gun culture.
Solidarity is a normal reaction to real or perceived hostility. In history the social pressure to assimilate resulted in immigrant collectivism in order to support each other; Chinatowns, little Italy and a myriad other ethnic enclaves formed partly because of this pressure.
That isn't evidence that officials just "set them up". That is evidence that officials are abiding by the laws and regulations that I pointed out which govern immigration and refugee processing.
You said there was "unrestricted immigration" and that they were "flooding" in but the link shows otherwise, it shows that there are restrictions in place and that they are being enforced. Getting upset over 0.00002% (of residents) per month is laughable. Even more when they are being apprehended and forced to go through the legitimate process. Edit: and it's not clear what proportion of those few hundred per month are actually entering by illegal border crossing; it has been said before that a majority of "illegal immigration" comes from people who overstay their Visa.