We must also not be swayed by mere words. Truly, if that were the test every politician would've passed it, as they continually promise us the world while screwing us over.

And, to fix a problem, you must reverse the impetus which caused it in the first place. Half measures and milquetoast compromises with truth do not lead to success or victory. It's not a no true Scotsman to demand adherence to truth, not just in belief and words, but in actions and behaviors. By your fruit you shall know them. If a man expressed the truth in word and belief, but does not follow the truth in his daily life, through his actions and behaviors, then he's a hypocrite and liar, and should not be trusted. This has been true of all people, all politicians, all leaders, since the beginning of time. It remains true, and will always be true. To sway from its lesson and warning, thinking you know better, to claim "that person is different", is to invite disaster. When we're already in the midst of disaster and trying to climb our way out, repeating the same mistake only leads to more disaster.