The PacSun store in our mall recently closed down within the past two months. They probably saw the publicity that the UA situation stirred up and went for some publicity -- at least that's what my cynical self tells me (could be) -- to help their sales.
Truly, if they want to sale shirts like that...then be adult enough to own it and keep on selling them. Then, if they get boycotted...they earned it...if they don't, then I guess people really don't care what is done with our flag and they will buy the shirt to show their right to do so.
Either way...I will simply smile at them and go on about my business thinking they are "silly."