The key to logic is to shut off your emotions when doing it. Emotions can create a bias that can make it difficult to draw the proper logical conclusions, since emotions can act like they are conclusions from a previous logic session. If the proper logical conclusion appears to conflict with the emotions, one will not go there.
For example, the left hates Donald Trump, therefore it can't reason things that will not reinforce the hate. For example, the economy and low unemployment rate are good things, but since good things associated with Trump would create a conflicting feeling with their hate, reason cannot go there. Instead they will reinforce a variation of fake news, to add flies to the ointment, so as to maintain a hate based conclusion.
When the left became feminized, it became too emotional and lost its ability for critical thinking. This was by design since their leaders knew logic does not work properly with emotions. The result is a personality type who is easy to program using lies and propaganda. All that is now needed is to reinforce the feelings du jour, with propaganda and fake news; bad data that appears to add up to the feelings. They will not question any data that seems to reinforce their feelings. Sometimes it easier to explain something by showing what not to do and/or what it is not.
Mr Spock is a poster child for logic since he shuts off his emotions before analyzing a situation with logic. One does not try to steer logic, but rather lets logic go were it will. Then you accept the result even if you don't like it.
