But that didn't happen, because Obama understood the rule of law, you can't defend Trump illegal actions by saying that if Obama had done that then the "leftists" would be cheering that.
Obama did not understand the rule of law. DACA is completely unconstitutional. The President cannot change immigration law as written by congress. If you believe Obama had the right to create DACA then the same broad executive powers to rewrite immigration laws should apply to Trump, right?