Someone coming to your country is not just another human changing the soil they walk on; it raises questions about how they'll provide for themselves, the capability to communicate, the capability to adhere to laws, wether they pose a risk to the health of your population(ie unvaccinated migrants), the capability to find employment and to function as a native born in said country would. It is in fact a very responsible way of looking at things when you impose strict regulations on visas because you're making sure that an individual that your country can give certain opportunities to can also give value back to said country.
People entering by the hundreds of thousands by floating their boats into terriorial waters of EU states is no way of immigrating to a country because of all the aforementioned problems. If your idea is that the world would be a better place where we'd be one globalized community with no national border or at least no immigration laws, then I can understand such a position because it is a sociopolitical view just like any other.