I'm not particularly sure on how the process is in Europe or what the consequences are, but in America foreigners create lobbying groups that impact US decision making. They're usually succumbed to FARA (Foreign Agents Registration Act) where they're required by law to be identified in them acting in the interest of a foreign government. However lobbying groups that are privately funded and founded by American citizens such as AIPAC do not have to go through this process. Other high profile immigrant groups like Indians and Arabs have their own American registered lobbying groups that will only increase in influence as immigration from those regions become streamlined via H-1B.
This is only going to make US national security worse when an emerging class of elite Asian foreigners starts to influence US policy
The expansionism Oromos are doing to Somalia is essentially one in the same that immigrants are doing in the US/Europe. It's just through different means