In the distant past people would defend their lands from invaders. Who were these invaders? They were not friendly people that wanted to come to the land and merge, coexist, and become something greater. They typically had their own ideas and they wanted to impose them upon the lands they invaded. If their might was superior they would perhaps enslave, loot, RAPE, murder, etc. This was a very overt (obvious) form of invader.
It is a large part of the reason people built walls. It is a large part of the reason people needed armies to defend themselves, or militia.
Immigration still occurred. It usually involved people arriving or being invited and learning the culture, the language, and bringing something beneficial to their new home. They didn't arrive with the intentions of forcing all of the people that were already there to CHANGE. If they wanted it to be like the place they came from, why would they immigrate?
Well there is a type of person that would show up. Expect change, and be fine with making a new place behave as the place they came from. That describes invaders fairly well.
We have entered a very nefarious and covert (hidden) technique of invasion. It is largely fueled by politicians. It can be for various reasons, but one of them is that if they give these invaders voting rights it is likely those invaders will vote for them. Thus, if they want to insure they keep their political job and power some of them have this sick method of thinking that enables them to justify allowing invaders into the country.
They take it a step further. If people complain about the invaders they pass laws to make it illegal to talk about the invaders. "I saw them come through the gates and I saw them rape a woman"... "Throw that man into jail! He didn't see anything!" "Maam, what about the rape?" "That is part of their culture. Throw anyone that mentions it into jail!"
Seems much like some corrupt politician throwing the city gates wide and inviting the raping and pillaging invaders into the city.
The more I consider this the more this seems to fit the model for what we are seeing.
A lot of Politically Correct word hijacking will occur to make it seem as though anyone protesting these invaders (aka illegal immigrants) is actually anti-Immigrant. Nothing can be further from the truth. The lie here is that they have taken the concept of INVADERS and tried to normalize it so it means the same thing as Immigrant.
Invaders often get special benefits and deals that the rest of the citizens do not. Any legal immigrants also don't get these special benefits. The invaders though will get special treatment. It might be as simple as calling the children of the invaders (often not children at all but in their 20s) "Dreamers" and giving them essentially free education or far better opportunities than the children of actual citizens.
When the program robbing the citizens to pay for this education for the invaders is protested in the form of the NOT LAW named DACA the politicians and their media propaganda engine swing into overdrive and try to tug on your heart strings of how we can't stop helping the "Dreamers".
Here is a simple question. Do you think invaders dream?
Yeah they do. They likely dream about the opportunities to loot, rape, and get free things. Why make your citizens pay to encourage such behavior?
Do you think your own citizens dream? Yes. So why give the free or low cost stuff to invaders which is not really free, it is paid for by stealing from your citizens and redistributing what is stolen? Why don't you give actual citizens the same rights you give invaders?
The real question is why you are so power hungry greedy and evil that you spin invaders into being a positive...
Or are you just that stupid?