That would be for the courts to decide. In that case, probably not. If someone decided to slaughter a pig in their front garden as that what is done at home, then they would be breaching the law. If someone decides to give their children knives as that's what happens at home again they're breaching the law.

Immigrants that can't speaks the language shouldn't have the chance to start working. If you're not in the EU you have far less rights than I do. Merely paying taxes doesn't make you a subject of this country.

People are very quick to bang on about their "rights", few seem as interested in their responsibilities. I would say that integrating is a responsibility - else why are you here? if a economic migrant, then don't be surprised if you're removed when you're no longer needed.