Do you think that immigrants are treated well in in most countries?

No, not all immigrants.

it is different than in the past when immigrants assimilated into the country they went to. Today immigrants expect the host country to assimilate to the culture country the immigrants are from.

Here in Australia they get treated well when they live off the government benefits and that's explains why the Aussies have no respect for them. 

Not at all. They are treated the best in America. That’s not even debatable