As for the Irish ... Blazing Saddles
As for the price of college tuition... Used to be cheap ,relatively speaking, until federal dollars became a factor. Colleges and universities were incentivized to raise tuition because ... gots to get me some of that
As for large groups of foreign nationals declaring their intention to storm and overwhelm a border, while displaying the flag of their own country, well, that's practically the definition of a hostile invading force.
When you emmigrate to another country with no intention of assimilation, that's not immigration, that's occupation. Instead of coming here to become Americans, Honduras want to come here and remain Honduran, Salvadorans want to come here and remain Salvadoran, Mexicans want to come here and remain Mexican. That's antithetical to the concept of immigration.