Q. Should any government limit the number of immigrants entering the country?
A. Probably, yes. Immoderate acceptance for =of immigrants would eventually lead to cultural and religious conflicts.
It takes much time to harmonize cultural differences.
Excessive immigration during a short period of time eventually results in social issues.
One example that supports this argument is the current situation of Europe.
They accepted a huge number of immigrants, particularly refugees.
I don't mean that helping refugees is a bad policy, but I think those countries rushed to accept refugees without a proper =proper preparations.
It is definitely needed that the country make a social preparation and legal amendment for both it's own citizens and immigrants.