I know many liberals who were extremely outspoken against Obama's illegal actions (I am one of them). I think that if you haven't encountered them, you haven't met good liberals or you haven't made an effort to ask people what their full belief set about Obama is. There was much less of an organized response than there is to Trump. Mostly because Trump has gone ahead and insulted just about everyone he possibly can, including liberals, veterans, immigrants, religious minorities, Mexicans,...

He's gone to ridiculous lengths to make enemies. He's a frickin reality TV show host, and it shows (ha). Obama, on the other hand, is a very subdued and poltician-ish figure. He colored within the lines on most public fronts, and pushed the limits in subtler and slower ways.