How can one definitively stop shaking hands with non-mahram women, along with an explanation of the reasons for its prohibition and a response to criticisms directed at not shaking hands, mentioning the noble hadiths that forbid shaking hands and the negative consequences it leads to?

Your residence in the lands of disbelief is one of the causes of what you suffer from, namely the scarcity of righteous companions and the abundance of corrupt individuals. The Prophet (peace be upon him) forbade residence in these lands when he said: "I am free of every Muslim who resides among the polytheists." This is because corruption has spread across the earth, but Muslim lands are in a better state. Imam Malik said: "No one should reside in a place where injustice is practiced." If no country exists except one like that, then a person should choose the one with the least sin. Therefore, hasten to leave these lands if you are unable to establish the rituals of your religion and fear temptation for yourself, for emigration in this case is obligatory.