Why Is Trump's Wall A Bad Thing?

[*Nately120*]

(01-28-2019, 01:57 PM)BFritz21 Wrote: Money saved by building the wall could be used on that in the future.

You just killed two birds with one wall.

Where are the positive ROI analyses on this wall endeavor?  MIT isn't on-board, but I haven't done much googling thus far. This whole thing just reminds me of one of those "You can't afford to NOT buy this!" sales pitches you hear on an infomercial.