I guess I'm just confused how people waving/flying/honoring the Confederate flag (and sadly, Nazi flags these days) is not considered disrespectful to the American flag.  As in, those flags represented literal armies fighting against the US and it's flag/anthem/whatever else.
To me, that's the crux.  For President Trump to now be very concerned about respect for the flag, while he celebrates the Confederacy as his own personal heritage, even, does not ring true with me.  I suspect ulterior motives at play.