Why did Donald Trump throw DHS to the wolves?

Why did Donald Trump decide to give the Democrats the opportunity to simply shut down the whole of DHS, his most powerful domestic law enforcement arm? This move was critized by conservative Republcians like Rick Scott, who argued it reduced Republican leverage considerably to put DHS in isolation from the rest of federal government, particuarly when it is as unpopular as it is now, because of recent ICE excesses. Now, there are people who would argue that actually ICE is protected from funding cuts during a government shutdown, because of legislation that has already been passed, but, this is false. The entire government apparatus is affected by a government shutdown, and, in particular, no one is supposed to be paid. Members of Congress and Federal judges are excepted, because otherwise, there would be no government at all. However, the military isn't paid, and federal agents aren't paid. If they were paid, then continuing resolutions and government shutdowns would effectively be meaningless, nothing of signficance would be shut down, ever, and there would be no means to control the federal deficit, at all, ever, which is the entire purpose of continuing resolutions. So, why did Donald Trump put DHS at risk to this extent? I think the answer is rather simple, actually. Donald Trump was actually losing control of the US military, as the conflict between ICE and the Democratic states was increasing in intensity, exponentially. In particular, in Minnesota, Governor Walz actually deployed his National Guard against ICE, and, it was precisely at this moment, the Donald Trump perceived how perilous his position had become. He had mobilized elements of National Guards in other states, in preparation to attack Minnesota, but, he realized, or perhaps was simply told, that that was simply not going to happen. Effectively, Governor Walz launched a successful coup against the Federal Government, and Trump was forced to demobilize the National Guard units and start withdrawing ICE from Minnesota. In other words, Trump recognized that he risked totally losing control of the country unless he cut DHS, and ICE in particular, loose. He has been forced to wash his hands of them, or, quite literally, be deposed from all power.