Actually, it's only Daddy's white nationalist moron base that wants it, which is all Daddy's playing to at this point:
... Only 31 percent of voters support shutting the government down again to force Congress to appropriate money for the wall, while nearly twice that many, 58 percent, oppose another shutdown. If the government does shut down again, a combined 54 percent would blame Trump and congressional Republicans, while just 33 percent would blame Democrats in Congress.
Trump has suggested that he could declare a “national emergency” to avert a shutdown but still build the wall — but that, too, is unpopular. A narrow, 51 percent majority opposes declaring an emergency, which is supported by 38 percent. (our emphasis)
Daddy never loved you, and he never will, Eric.