Why don't immigrants to Canada, accomodate Canada? Why must Canada change everything for them?

as a Canadian, i dont care if you want to wear a hyjab or what ever, i get pissed off about having to pay federal incometaxes at the end of the year in the tune of ($3000 ) so they can get welfare,, no,, and people who sponser their family do not pay for them like they are suppose too... its not tht we are racists, its that we see how unfare it is all becoming and how the immigrants ( and i am an immigrant m;yself) are demanding they have all these extras.. you are here in a country like Canada because you dont like where you come from,, be grateful.. not grabby and whinny