I think the Secret Service doomers that are appearing like mushrooms in cow shit today are doing two things:
1. Sow discord (as usual).
2. Pressure Trump into a more visible and optically 'authoritarian' security mode, thus contributing to the leftist narrative of Trump as evil villain.
Trump appears to loathe the decision and especially its retrospective nature, but his comment regarding the dollar amount puts in perspective the size of the USA economy and federal budget.
He's unhappy about that gouge in revenue but demonstrating that he is following the rule of law while he renders the decision essentially meaningless, with that well-articulated plan, in the medium-long term.
And just as New World slavery could not be said to be ok because it lacked certain terrible features of North African slavery, it cannot be said that surrogacy for nice people is ok.
In every case of surrogacy, especially those involving money or other advantage used to incentivise the mother, a conspiracy exists to bring into existence a child who will suffer never knowing its mother for the pleasure of other adults. There is no way to surmount or bypass this moral issue.
The egregious nature of some surrogacy stories where children are taken and exploited/killed does not take away from the harms imposed on an innocent newborn, nor those visits upon the mother in cases where the receiving 'parents' are not pathological or predatory.
And I will suggest strongly here that the practice of surrogacy, compensated surrogacy perhaps especially, is on the wrong side of the line defining slavery.
Surrogacy is a form of slavery for the mother and for the infant child.
While employment has its coercive aspect, it is generally understood that this imposition on freedom is clearly on one side of the line as a form of slavery, with the chattel slavery of the other examples being clearly on the other side of the definitional line.
I'd assert that what went on across the uncontrolled US border was a form of slavery. In high numbers.