They just never paid attention to all the presidential executive orders under Republican presidents. Now that a black man and a Democrat is in office, they suddenly hear or care about executive orders, and think Obama is issuing papal bulls or royal decrees or some such bullshit.
Executive orders are generally about implementing federal government work or action policy decisions or strategic military operations, nearly always for immediacy's sake, often to stem crises, and yes, in quite a few past cases, there were very shady directives that benefitted whichever president issued them, but all of those orders involve only federal employees at their jobs. So, you know...it's mostly just about an executive, executing executive prerogatives, just like an executive does in a corporation. Obama has issued far fewer executive orders than any modern era president, but ya know, scary black commie Muslim Demoncrat.