Moreover if you do not control migration, it can lead to the strengthening of extreme right-wing views and the birth of fascism.
Sounds backwards to me. The stronger the extreme right-wing views become, the more people try to control migration. Many times throughout history when indoctrination of fear against minorities has been normalised as part of the culture (as is currently happening), it has been accompanied by an increasingly authoritarian swing to the right. The alt-right claim they're all about personal freedom and liberty, but personal freedom only seems to apply if you happen to be born in the same arbitrary borders as them. It's not about freedom at all, it's about control. Control through fear.
Migration itself is not a cause of fascism. Demonising migration is a symptom of fascism being already present.
It's not indoctrination and with that assumption you insult a lot of people who actually are smart enough to wipe their own ass. Overmore, the assumption that this so-called indoctrination is being normalised is based on the unjust assumption that it is indeed indoctrination. Every politician, like any insurance company, capitalizes on fear. They do this because there are alot of people out there with more money than brains, and yes a lot of those people are really poor.
That authoritarian swing is always present: you confirm a swing to the right so it's a movement leaving from the left, going right. That's must mean the left was the authority before. That's just sour grapes.
Fascism is the cause for the current migration westwards, islamofascism. Demonising migration is non-existent, leftist like to drop these words to accuse without proper basis because they know that they cannot prove their point, so they start slinging mud. Illegal immigration has always been frowned upon, by anyone except international socialists which are non more than fascist without borders.