True, but thus far he has had a completely passive Congress that basically doesnt exist, this has not been challenged yet in his second term and he went nowhere near this far in his first.
I don't think it will solve everything by a long stretch, but this is an area that hasn't been tested yet, many of the areas he is legislating for are actually Congress responsibility and the Republicans have just been allowing him to do it, the Democrats you would assume would try to reassert Congress authority and that will tell us a lot about where things are.*
If it wasn't going to at least be an annoyance for them, I don't imagine they would be working this hard to destabilise things prior to the mid-terms.
*I think, I am no US constitutional expert, if someone knows more than me go ahead and correct.
Of course it wouldn't surprise me if he got his Sturmabteilung (ICE) to go and capture his opponents at that point, but as said we will see.
(By the way is the new NOT606 formatting wrecked? I can't get it to remove italics after I applied them...)