How can anyone with ounce of intelligence, self-respect continue to support Putin's puppet?

In the spring of 1993, I was part of a group of students from Penn State who traveled to Barbados as part of an independent study program. We each had our own specific focus. Being a communications major, employed full time in radio broadcasting, my plan was to study the global telecommunications network on the island.
While in Barbados, I made it a point to visit every broadcast organization I could. What surprised me most, was that all of the radio and television stations secured access to their on-air broadcast facilities by electronically locked doors, which wasn’t the case at the radio stations I worked at in the U.S.
I was told that Barbados, as an independent nation, was susceptible to being taken over by foreign entities or rogue regimes, and the first thing they do in a coup attempt is take control of the media and broadcast facilities …”control the message and control the people.”
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With the unethical and unprovoked invasion of Ukraine, Donald Trump’s buddy, the man he trusted more than his own U.S. government intelligence staff, the autocratic dictator committing atrocious war crimes against the people of Ukraine, Vladimir Putin, is following the same playbook that I was warned about 29 years ago on the tiny island of Barbados.
Putin is targeting innocent civilians, hospitals, and schools in addition to television and radio towers. I don’t understand how anyone with a minimal degree of intelligence, patriotism, or self-respect could continue to support Trump, who was, and remains, Putin’s puppet.