Immigrants Strike For A Day?

'Without Immigrants, Our Country Wouldn't Function - So Let's Give It a Go for 24 Hours.'
Mehdi Hassan in the Huffington Post (Leftist online newspaper.)
This simple-minded gent is the political director of The Huff' Post - believe it or not!
BNP and EDL types apart - where can you find any significant anti-immigrant bias?
The bias is against NEW immigration. and with all fair-minded people welcoming existing immigrants - or at least, the honest ones who wish to integrate and not impose - where is the problem?