Considering the fact that
'Shut The Government Down' is almost
MEANINGLESS, despite the fear-mongering and successful cataclysmic conditioning of Gruber-esque sheep, if doing so is in the best interest of the country, if the President is willing to let it 'shut down' while successfully getting the message out that Democrats are willing to CONTINUE to put out national security at risk by facilitating Illegal Immigration, supporting federal-law-violating sanctuary cities, and opposing the funding of the wall - that costs far less than the actual ever-growing cost of Illegal Immigration, I believe he should do it as well.
'Shutting Down The Govt' = Meaningless:
Yup -
THE FEDERAL GOVERNMENT 'SHUTS DOWN' EVERY FEDERAL HOLIDAY...
Every Christmas, every New Years Day, every Martin Luther King Day, every Memorial Day, every Labor Day, every Veterans Day, and every Thanksgiving Day.....
And yet the United States somehow survives, does not collapse, millions do not lose their homes and get kicked into the street, financial collapse, Global Warming, hurricanes, invasion, cats and dogs living together, Armageddon.....GO FIGURE!
The Federal Govt goes down to 'minimum manning', essential personnel required to run / protect / etc... the country.
NO ONE does NOT get paid. All workers get paid for the time they are off due to a 'shut-down'.
...and most of the politicians' time is blaming the other for the shutdown instead of attempting to work through the problem, until someone / some side blinks.
In an attempt to make the other side blink they wage a huge media blitz....Obama was even caught sending out a memo to government agencies telling them to do everything they could to make the shutdown as painful as humanly possible on the American people so people would hate the GOP when the Democrats blamed them for the shutdown. Obama / Obama's administration even tried to shutdown an Historic sight in Virginia that WAS NOT own / run by the US govt.

Bwuhahaha!
Screw it - if it is important to national security, and it is,
'SHUT THE GOVERNMENT DOWN'!
JUST REMEMBER, ONE SIDE WILL BE DOING IT TO CONTINUE TO HELP ILLEGALS / KEEP ILLEGAL IMMIGRATION GOING ...THE OTHER SIDE WILL BE DOING IT FOR THE PROTECTION OF THE UNITED STATES AND US CITIZENS.