Why would any rational person waste time putting together an immigration reform bill that would actually close the border when it's obvious that Obama won't sign it? Would you do that?The echo chamber in full hysteria ^^^ - how usual.
Notice within the echo's there is no effort to offer a viable solution to a serious problem, or to try to understand the policy in The City is no different than others in over 300 other American Cities.
Q. Why are there Sanctuary Cities
A. Ask Boehner and McConnell, they have the power to put forth comprehensive immigration reform.
Q. Why haven't they
A. Because they want to pander to the base, the arch conservatives Trump is now kissing up to with his demagoguery.
The GOP can't get immigration reform through because Obama will veto anything that really closes the border.
So where are the GOP's immigration reform bills?
The ones that Obama will veto?
So you have no examples of Republicans putting any immigration bills on his desk.